devdocs/assets/javascripts/vendor/raven.js

/*! Raven.js 3.13.1 (f55d281) | github.com/getsentry/raven-js */

/*
 * Includes TraceKit
 * https://github.com/getsentry/TraceKit
 *
 * Copyright 2017 Matt Robenolt and other contributors
 * Released under the BSD license
 * https://github.com/getsentry/raven-js/blob/master/LICENSE
 *
 */

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Raven = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(_dereq_,module,exports){
'use strict';

function RavenConfigError(message) {
    this.name = 'RavenConfigError';
    this.message = message;
}
RavenConfigError.prototype = new Error();
RavenConfigError.prototype.constructor = RavenConfigError;

module.exports = RavenConfigError;

},{}],2:[function(_dereq_,module,exports){
'use strict';

var wrapMethod = function(console, level, callback) {
    var originalConsoleLevel = console[level];
    var originalConsole = console;

    if (!(level in console)) {
        return;
    }

    var sentryLevel = level === 'warn'
        ? 'warning'
        : level;

    console[level] = function () {
        var args = [].slice.call(arguments);

        var msg = '' + args.join(' ');
        var data = {level: sentryLevel, logger: 'console', extra: {'arguments': args}};
        callback && callback(msg, data);

        // this fails for some browsers. :(
        if (originalConsoleLevel) {
            // IE9 doesn't allow calling apply on console functions directly
            // See: https://stackoverflow.com/questions/5472938/does-ie9-support-console-log-and-is-it-a-real-function#answer-5473193
            Function.prototype.apply.call(
                originalConsoleLevel,
                originalConsole,
                args
            );
        }
    };
};

module.exports = {
    wrapMethod: wrapMethod
};

},{}],3:[function(_dereq_,module,exports){
(function (global){
/*global XDomainRequest:false, __DEV__:false*/
'use strict';

var TraceKit = _dereq_(6);
var stringify = _dereq_(7);
var RavenConfigError = _dereq_(1);
var utils = _dereq_(5);

var isError = utils.isError,
    isObject = utils.isObject;

var wrapConsoleMethod = _dereq_(2).wrapMethod;

var dsnKeys = 'source protocol user pass host port path'.split(' '),
    dsnPattern = /^(?:(\w+):)?\/\/(?:(\w+)(:\w+)?@)?([\w\.-]+)(?::(\d+))?(\/.*)/;

function now() {
    return +new Date();
}

// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)
var _window = typeof window !== 'undefined' ? window
            : typeof global !== 'undefined' ? global
            : typeof self !== 'undefined' ? self
            : {};
var _document = _window.document;
var _navigator = _window.navigator;

// First, check for JSON support
// If there is no JSON, we no-op the core features of Raven
// since JSON is required to encode the payload
function Raven() {
    this._hasJSON = !!(typeof JSON === 'object' && JSON.stringify);
    // Raven can run in contexts where there's no document (react-native)
    this._hasDocument = !isUndefined(_document);
    this._hasNavigator = !isUndefined(_navigator);
    this._lastCapturedException = null;
    this._lastData = null;
    this._lastEventId = null;
    this._globalServer = null;
    this._globalKey = null;
    this._globalProject = null;
    this._globalContext = {};
    this._globalOptions = {
        logger: 'javascript',
        ignoreErrors: [],
        ignoreUrls: [],
        whitelistUrls: [],
        includePaths: [],
        crossOrigin: 'anonymous',
        collectWindowErrors: true,
        maxMessageLength: 0,
        stackTraceLimit: 50,
        autoBreadcrumbs: true,
        sampleRate: 1
    };
    this._ignoreOnError = 0;
    this._isRavenInstalled = false;
    this._originalErrorStackTraceLimit = Error.stackTraceLimit;
    // capture references to window.console *and* all its methods first
    // before the console plugin has a chance to monkey patch
    this._originalConsole = _window.console || {};
    this._originalConsoleMethods = {};
    this._plugins = [];
    this._startTime = now();
    this._wrappedBuiltIns = [];
    this._breadcrumbs = [];
    this._lastCapturedEvent = null;
    this._keypressTimeout;
    this._location = _window.location;
    this._lastHref = this._location && this._location.href;
    this._resetBackoff();

    for (var method in this._originalConsole) {  // eslint-disable-line guard-for-in
      this._originalConsoleMethods[method] = this._originalConsole[method];
    }
}

/*
 * The core Raven singleton
 *
 * @this {Raven}
 */

Raven.prototype = {
    // Hardcode version string so that raven source can be loaded directly via
    // webpack (using a build step causes webpack #1617). Grunt verifies that
    // this value matches package.json during build.
    //   See: https://github.com/getsentry/raven-js/issues/465
    VERSION: '3.13.1',

    debug: false,

    TraceKit: TraceKit, // alias to TraceKit

    /*
     * Configure Raven with a DSN and extra options
     *
     * @param {string} dsn The public Sentry DSN
     * @param {object} options Optional set of of global options [optional]
     * @return {Raven}
     */
    config: function(dsn, options) {
        var self = this;

        if (self._globalServer) {
                this._logDebug('error', 'Error: Raven has already been configured');
            return self;
        }
        if (!dsn) return self;

        var globalOptions = self._globalOptions;

        // merge in options
        if (options) {
            each(options, function(key, value){
                // tags and extra are special and need to be put into context
                if (key === 'tags' || key === 'extra' || key === 'user') {
                    self._globalContext[key] = value;
                } else {
                    globalOptions[key] = value;
                }
            });
        }

        self.setDSN(dsn);

        // "Script error." is hard coded into browsers for errors that it can't read.
        // this is the result of a script being pulled in from an external domain and CORS.
        globalOptions.ignoreErrors.push(/^Script error\.?$/);
        globalOptions.ignoreErrors.push(/^Javascript error: Script error\.? on line 0$/);

        // join regexp rules into one big rule
        globalOptions.ignoreErrors = joinRegExp(globalOptions.ignoreErrors);
        globalOptions.ignoreUrls = globalOptions.ignoreUrls.length ? joinRegExp(globalOptions.ignoreUrls) : false;
        globalOptions.whitelistUrls = globalOptions.whitelistUrls.length ? joinRegExp(globalOptions.whitelistUrls) : false;
        globalOptions.includePaths = joinRegExp(globalOptions.includePaths);
        globalOptions.maxBreadcrumbs = Math.max(0, Math.min(globalOptions.maxBreadcrumbs || 100, 100)); // default and hard limit is 100

        var autoBreadcrumbDefaults = {
            xhr: true,
            console: true,
            dom: true,
            location: true
        };

        var autoBreadcrumbs = globalOptions.autoBreadcrumbs;
        if ({}.toString.call(autoBreadcrumbs) === '[object Object]') {
            autoBreadcrumbs = objectMerge(autoBreadcrumbDefaults, autoBreadcrumbs);
        } else if (autoBreadcrumbs !== false) {
            autoBreadcrumbs = autoBreadcrumbDefaults;
        }
        globalOptions.autoBreadcrumbs = autoBreadcrumbs;

        TraceKit.collectWindowErrors = !!globalOptions.collectWindowErrors;

        // return for chaining
        return self;
    },

    /*
     * Installs a global window.onerror error handler
     * to capture and report uncaught exceptions.
     * At this point, install() is required to be called due
     * to the way TraceKit is set up.
     *
     * @return {Raven}
     */
    install: function() {
        var self = this;
        if (self.isSetup() && !self._isRavenInstalled) {
            TraceKit.report.subscribe(function () {
                self._handleOnErrorStackInfo.apply(self, arguments);
            });
            self._instrumentTryCatch();
            if (self._globalOptions.autoBreadcrumbs)
                self._instrumentBreadcrumbs();

            // Install all of the plugins
            self._drainPlugins();

            self._isRavenInstalled = true;
        }

        Error.stackTraceLimit = self._globalOptions.stackTraceLimit;
        return this;
    },

    /*
     * Set the DSN (can be called multiple time unlike config)
     *
     * @param {string} dsn The public Sentry DSN
     */
    setDSN: function(dsn) {
        var self = this,
            uri = self._parseDSN(dsn),
          lastSlash = uri.path.lastIndexOf('/'),
          path = uri.path.substr(1, lastSlash);

        self._dsn = dsn;
        self._globalKey = uri.user;
        self._globalSecret = uri.pass && uri.pass.substr(1);
        self._globalProject = uri.path.substr(lastSlash + 1);

        self._globalServer = self._getGlobalServer(uri);

        self._globalEndpoint = self._globalServer +
            '/' + path + 'api/' + self._globalProject + '/store/';

        // Reset backoff state since we may be pointing at a
        // new project/server
        this._resetBackoff();
    },

    /*
     * Wrap code within a context so Raven can capture errors
     * reliably across domains that is executed immediately.
     *
     * @param {object} options A specific set of options for this context [optional]
     * @param {function} func The callback to be immediately executed within the context
     * @param {array} args An array of arguments to be called with the callback [optional]
     */
    context: function(options, func, args) {
        if (isFunction(options)) {
            args = func || [];
            func = options;
            options = undefined;
        }

        return this.wrap(options, func).apply(this, args);
    },

    /*
     * Wrap code within a context and returns back a new function to be executed
     *
     * @param {object} options A specific set of options for this context [optional]
     * @param {function} func The function to be wrapped in a new context
     * @param {function} func A function to call before the try/catch wrapper [optional, private]
     * @return {function} The newly wrapped functions with a context
     */
    wrap: function(options, func, _before) {
        var self = this;
        // 1 argument has been passed, and it's not a function
        // so just return it
        if (isUndefined(func) && !isFunction(options)) {
            return options;
        }

        // options is optional
        if (isFunction(options)) {
            func = options;
            options = undefined;
        }

        // At this point, we've passed along 2 arguments, and the second one
        // is not a function either, so we'll just return the second argument.
        if (!isFunction(func)) {
            return func;
        }

        // We don't wanna wrap it twice!
        try {
            if (func.__raven__) {
                return func;
            }

            // If this has already been wrapped in the past, return that
            if (func.__raven_wrapper__ ){
                return func.__raven_wrapper__ ;
            }
        } catch (e) {
            // Just accessing custom props in some Selenium environments
            // can cause a "Permission denied" exception (see raven-js#495).
            // Bail on wrapping and return the function as-is (defers to window.onerror).
            return func;
        }

        function wrapped() {
            var args = [], i = arguments.length,
                deep = !options || options && options.deep !== false;

            if (_before && isFunction(_before)) {
                _before.apply(this, arguments);
            }

            // Recursively wrap all of a function's arguments that are
            // functions themselves.
            while(i--) args[i] = deep ? self.wrap(options, arguments[i]) : arguments[i];

            try {
                // Attempt to invoke user-land function
                // NOTE: If you are a Sentry user, and you are seeing this stack frame, it
                //       means Raven caught an error invoking your application code. This is
                //       expected behavior and NOT indicative of a bug with Raven.js.
                return func.apply(this, args);
            } catch(e) {
                self._ignoreNextOnError();
                self.captureException(e, options);
                throw e;
            }
        }

        // copy over properties of the old function
        for (var property in func) {
            if (hasKey(func, property)) {
                wrapped[property] = func[property];
            }
        }
        wrapped.prototype = func.prototype;

        func.__raven_wrapper__ = wrapped;
        // Signal that this function has been wrapped already
        // for both debugging and to prevent it to being wrapped twice
        wrapped.__raven__ = true;
        wrapped.__inner__ = func;

        return wrapped;
    },

    /*
     * Uninstalls the global error handler.
     *
     * @return {Raven}
     */
    uninstall: function() {
        TraceKit.report.uninstall();

        this._restoreBuiltIns();

        Error.stackTraceLimit = this._originalErrorStackTraceLimit;
        this._isRavenInstalled = false;

        return this;
    },

    /*
     * Manually capture an exception and send it over to Sentry
     *
     * @param {error} ex An exception to be logged
     * @param {object} options A specific set of options for this error [optional]
     * @return {Raven}
     */
    captureException: function(ex, options) {
        // If not an Error is passed through, recall as a message instead
        if (!isError(ex)) {
            return this.captureMessage(ex, objectMerge({
                trimHeadFrames: 1,
                stacktrace: true // if we fall back to captureMessage, default to attempting a new trace
            }, options));
        }

        // Store the raw exception object for potential debugging and introspection
        this._lastCapturedException = ex;

        // TraceKit.report will re-raise any exception passed to it,
        // which means you have to wrap it in try/catch. Instead, we
        // can wrap it here and only re-raise if TraceKit.report
        // raises an exception different from the one we asked to
        // report on.
        try {
            var stack = TraceKit.computeStackTrace(ex);
            this._handleStackInfo(stack, options);
        } catch(ex1) {
            if(ex !== ex1) {
                throw ex1;
            }
        }

        return this;
    },

    /*
     * Manually send a message to Sentry
     *
     * @param {string} msg A plain message to be captured in Sentry
     * @param {object} options A specific set of options for this message [optional]
     * @return {Raven}
     */
    captureMessage: function(msg, options) {
        // config() automagically converts ignoreErrors from a list to a RegExp so we need to test for an
        // early call; we'll error on the side of logging anything called before configuration since it's
        // probably something you should see:
        if (!!this._globalOptions.ignoreErrors.test && this._globalOptions.ignoreErrors.test(msg)) {
            return;
        }

        options = options || {};

        var data = objectMerge({
            message: msg + ''  // Make sure it's actually a string
        }, options);

        if (this._globalOptions.stacktrace || (options && options.stacktrace)) {
            var ex;
            // create a stack trace from this point; just trim
            // off extra frames so they don't include this function call (or
            // earlier Raven.js library fn calls)
            try {
                throw new Error(msg);
            } catch (ex1) {
                ex = ex1;
            }

            // null exception name so `Error` isn't prefixed to msg
            ex.name = null;

            options = objectMerge({
                // fingerprint on msg, not stack trace (legacy behavior, could be
                // revisited)
                fingerprint: msg,
                trimHeadFrames: (options.trimHeadFrames || 0) + 1
            }, options);

            var stack = TraceKit.computeStackTrace(ex);
            var frames = this._prepareFrames(stack, options);
            data.stacktrace = {
                // Sentry expects frames oldest to newest
                frames: frames.reverse()
            }
        }

        // Fire away!
        this._send(data);

        return this;
    },

    captureBreadcrumb: function (obj) {
        var crumb = objectMerge({
            timestamp: now() / 1000
        }, obj);

        if (isFunction(this._globalOptions.breadcrumbCallback)) {
            var result = this._globalOptions.breadcrumbCallback(crumb);

            if (isObject(result) && !isEmptyObject(result)) {
                crumb = result;
            } else if (result === false) {
                return this;
            }
        }

        this._breadcrumbs.push(crumb);
        if (this._breadcrumbs.length > this._globalOptions.maxBreadcrumbs) {
            this._breadcrumbs.shift();
        }
        return this;
    },

    addPlugin: function(plugin /*arg1, arg2, ... argN*/) {
        var pluginArgs = [].slice.call(arguments, 1);

        this._plugins.push([plugin, pluginArgs]);
        if (this._isRavenInstalled) {
            this._drainPlugins();
        }

        return this;
    },

    /*
     * Set/clear a user to be sent along with the payload.
     *
     * @param {object} user An object representing user data [optional]
     * @return {Raven}
     */
    setUserContext: function(user) {
        // Intentionally do not merge here since that's an unexpected behavior.
        this._globalContext.user = user;

        return this;
    },

    /*
     * Merge extra attributes to be sent along with the payload.
     *
     * @param {object} extra An object representing extra data [optional]
     * @return {Raven}
     */
    setExtraContext: function(extra) {
        this._mergeContext('extra', extra);

        return this;
    },

    /*
     * Merge tags to be sent along with the payload.
     *
     * @param {object} tags An object representing tags [optional]
     * @return {Raven}
     */
    setTagsContext: function(tags) {
        this._mergeContext('tags', tags);

        return this;
    },

    /*
     * Clear all of the context.
     *
     * @return {Raven}
     */
    clearContext: function() {
        this._globalContext = {};

        return this;
    },

    /*
     * Get a copy of the current context. This cannot be mutated.
     *
     * @return {object} copy of context
     */
    getContext: function() {
        // lol javascript
        return JSON.parse(stringify(this._globalContext));
    },


    /*
     * Set environment of application
     *
     * @param {string} environment Typically something like 'production'.
     * @return {Raven}
     */
    setEnvironment: function(environment) {
        this._globalOptions.environment = environment;

        return this;
    },

    /*
     * Set release version of application
     *
     * @param {string} release Typically something like a git SHA to identify version
     * @return {Raven}
     */
    setRelease: function(release) {
        this._globalOptions.release = release;

        return this;
    },

    /*
     * Set the dataCallback option
     *
     * @param {function} callback The callback to run which allows the
     *                            data blob to be mutated before sending
     * @return {Raven}
     */
    setDataCallback: function(callback) {
        var original = this._globalOptions.dataCallback;
        this._globalOptions.dataCallback = isFunction(callback)
          ? function (data) { return callback(data, original); }
          : callback;

        return this;
    },

    /*
     * Set the breadcrumbCallback option
     *
     * @param {function} callback The callback to run which allows filtering
     *                            or mutating breadcrumbs
     * @return {Raven}
     */
    setBreadcrumbCallback: function(callback) {
        var original = this._globalOptions.breadcrumbCallback;
        this._globalOptions.breadcrumbCallback = isFunction(callback)
          ? function (data) { return callback(data, original); }
          : callback;

        return this;
    },

    /*
     * Set the shouldSendCallback option
     *
     * @param {function} callback The callback to run which allows
     *                            introspecting the blob before sending
     * @return {Raven}
     */
    setShouldSendCallback: function(callback) {
        var original = this._globalOptions.shouldSendCallback;
        this._globalOptions.shouldSendCallback = isFunction(callback)
            ? function (data) { return callback(data, original); }
            : callback;

        return this;
    },

    /**
     * Override the default HTTP transport mechanism that transmits data
     * to the Sentry server.
     *
     * @param {function} transport Function invoked instead of the default
     *                             `makeRequest` handler.
     *
     * @return {Raven}
     */
    setTransport: function(transport) {
        this._globalOptions.transport = transport;

        return this;
    },

    /*
     * Get the latest raw exception that was captured by Raven.
     *
     * @return {error}
     */
    lastException: function() {
        return this._lastCapturedException;
    },

    /*
     * Get the last event id
     *
     * @return {string}
     */
    lastEventId: function() {
        return this._lastEventId;
    },

    /*
     * Determine if Raven is setup and ready to go.
     *
     * @return {boolean}
     */
    isSetup: function() {
        if (!this._hasJSON) return false;  // needs JSON support
        if (!this._globalServer) {
            if (!this.ravenNotConfiguredError) {
              this.ravenNotConfiguredError = true;
              this._logDebug('error', 'Error: Raven has not been configured.');
            }
            return false;
        }
        return true;
    },

    afterLoad: function () {
        // TODO: remove window dependence?

        // Attempt to initialize Raven on load
        var RavenConfig = _window.RavenConfig;
        if (RavenConfig) {
            this.config(RavenConfig.dsn, RavenConfig.config).install();
        }
    },

    showReportDialog: function (options) {
        if (!_document) // doesn't work without a document (React native)
            return;

        options = options || {};

        var lastEventId = options.eventId || this.lastEventId();
        if (!lastEventId) {
            throw new RavenConfigError('Missing eventId');
        }

        var dsn = options.dsn || this._dsn;
        if (!dsn) {
            throw new RavenConfigError('Missing DSN');
        }

        var encode = encodeURIComponent;
        var qs = '';
        qs += '?eventId=' + encode(lastEventId);
        qs += '&dsn=' + encode(dsn);

        var user = options.user || this._globalContext.user;
        if (user) {
            if (user.name)  qs += '&name=' + encode(user.name);
            if (user.email) qs += '&email=' + encode(user.email);
        }

        var globalServer = this._getGlobalServer(this._parseDSN(dsn));

        var script = _document.createElement('script');
        script.async = true;
        script.src = globalServer + '/api/embed/error-page/' + qs;
        (_document.head || _document.body).appendChild(script);
    },

    /**** Private functions ****/
    _ignoreNextOnError: function () {
        var self = this;
        this._ignoreOnError += 1;
        setTimeout(function () {
            // onerror should trigger before setTimeout
            self._ignoreOnError -= 1;
        });
    },

    _triggerEvent: function(eventType, options) {
        // NOTE: `event` is a native browser thing, so let's avoid conflicting wiht it
        var evt, key;

        if (!this._hasDocument)
            return;

        options = options || {};

        eventType = 'raven' + eventType.substr(0,1).toUpperCase() + eventType.substr(1);

        if (_document.createEvent) {
            evt = _document.createEvent('HTMLEvents');
            evt.initEvent(eventType, true, true);
        } else {
            evt = _document.createEventObject();
            evt.eventType = eventType;
        }

        for (key in options) if (hasKey(options, key)) {
            evt[key] = options[key];
        }

        if (_document.createEvent) {
            // IE9 if standards
            _document.dispatchEvent(evt);
        } else {
            // IE8 regardless of Quirks or Standards
            // IE9 if quirks
            try {
                _document.fireEvent('on' + evt.eventType.toLowerCase(), evt);
            } catch(e) {
                // Do nothing
            }
        }
    },

    /**
     * Wraps addEventListener to capture UI breadcrumbs
     * @param evtName the event name (e.g. "click")
     * @returns {Function}
     * @private
     */
    _breadcrumbEventHandler: function(evtName) {
        var self = this;
        return function (evt) {
            // reset keypress timeout; e.g. triggering a 'click' after
            // a 'keypress' will reset the keypress debounce so that a new
            // set of keypresses can be recorded
            self._keypressTimeout = null;

            // It's possible this handler might trigger multiple times for the same
            // event (e.g. event propagation through node ancestors). Ignore if we've
            // already captured the event.
            if (self._lastCapturedEvent === evt)
                return;

            self._lastCapturedEvent = evt;

            // try/catch both:
            // - accessing evt.target (see getsentry/raven-js#838, #768)
            // - `htmlTreeAsString` because it's complex, and just accessing the DOM incorrectly
            //   can throw an exception in some circumstances.
            var target;
            try {
                target = htmlTreeAsString(evt.target);
            } catch (e) {
                target = '<unknown>';
            }

            self.captureBreadcrumb({
                category: 'ui.' + evtName, // e.g. ui.click, ui.input
                message: target
            });
        };
    },

    /**
     * Wraps addEventListener to capture keypress UI events
     * @returns {Function}
     * @private
     */
    _keypressEventHandler: function() {
        var self = this,
            debounceDuration = 1000; // milliseconds

        // TODO: if somehow user switches keypress target before
        //       debounce timeout is triggered, we will only capture
        //       a single breadcrumb from the FIRST target (acceptable?)
        return function (evt) {
            var target;
            try {
                target = evt.target;
            } catch (e) {
                // just accessing event properties can throw an exception in some rare circumstances
                // see: https://github.com/getsentry/raven-js/issues/838
                return;
            }
            var tagName = target && target.tagName;

            // only consider keypress events on actual input elements
            // this will disregard keypresses targeting body (e.g. tabbing
            // through elements, hotkeys, etc)
            if (!tagName || tagName !== 'INPUT' && tagName !== 'TEXTAREA' && !target.isContentEditable)
                return;

            // record first keypress in a series, but ignore subsequent
            // keypresses until debounce clears
            var timeout = self._keypressTimeout;
            if (!timeout) {
                self._breadcrumbEventHandler('input')(evt);
            }
            clearTimeout(timeout);
            self._keypressTimeout = setTimeout(function () {
                self._keypressTimeout = null;
            }, debounceDuration);
        };
    },

    /**
     * Captures a breadcrumb of type "navigation", normalizing input URLs
     * @param to the originating URL
     * @param from the target URL
     * @private
     */
    _captureUrlChange: function(from, to) {
        var parsedLoc = parseUrl(this._location.href);
        var parsedTo = parseUrl(to);
        var parsedFrom = parseUrl(from);

        // because onpopstate only tells you the "new" (to) value of location.href, and
        // not the previous (from) value, we need to track the value of the current URL
        // state ourselves
        this._lastHref = to;

        // Use only the path component of the URL if the URL matches the current
        // document (almost all the time when using pushState)
        if (parsedLoc.protocol === parsedTo.protocol && parsedLoc.host === parsedTo.host)
            to = parsedTo.relative;
        if (parsedLoc.protocol === parsedFrom.protocol && parsedLoc.host === parsedFrom.host)
            from = parsedFrom.relative;

        this.captureBreadcrumb({
            category: 'navigation',
            data: {
                to: to,
                from: from
            }
        });
    },

    /**
     * Install any queued plugins
     */
    _instrumentTryCatch: function() {
        var self = this;

        var wrappedBuiltIns = self._wrappedBuiltIns;

        function wrapTimeFn(orig) {
            return function (fn, t) { // preserve arity
                // Make a copy of the arguments to prevent deoptimization
                // https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#32-leaking-arguments
                var args = new Array(arguments.length);
                for(var i = 0; i < args.length; ++i) {
                    args[i] = arguments[i];
                }
                var originalCallback = args[0];
                if (isFunction(originalCallback)) {
                    args[0] = self.wrap(originalCallback);
                }

                // IE < 9 doesn't support .call/.apply on setInterval/setTimeout, but it
                // also supports only two arguments and doesn't care what this is, so we
                // can just call the original function directly.
                if (orig.apply) {
                    return orig.apply(this, args);
                } else {
                    return orig(args[0], args[1]);
                }
            };
        }

        var autoBreadcrumbs = this._globalOptions.autoBreadcrumbs;

        function wrapEventTarget(global) {
            var proto = _window[global] && _window[global].prototype;
            if (proto && proto.hasOwnProperty && proto.hasOwnProperty('addEventListener')) {
                fill(proto, 'addEventListener', function(orig) {
                    return function (evtName, fn, capture, secure) { // preserve arity
                        try {
                            if (fn && fn.handleEvent) {
                                fn.handleEvent = self.wrap(fn.handleEvent);
                            }
                        } catch (err) {
                            // can sometimes get 'Permission denied to access property "handle Event'
                        }

                        // More breadcrumb DOM capture ... done here and not in `_instrumentBreadcrumbs`
                        // so that we don't have more than one wrapper function
                        var before,
                            clickHandler,
                            keypressHandler;

                        if (autoBreadcrumbs && autoBreadcrumbs.dom && (global === 'EventTarget' || global === 'Node')) {
                            // NOTE: generating multiple handlers per addEventListener invocation, should
                            //       revisit and verify we can just use one (almost certainly)
                            clickHandler = self._breadcrumbEventHandler('click');
                            keypressHandler = self._keypressEventHandler();
                            before = function (evt) {
                                // need to intercept every DOM event in `before` argument, in case that
                                // same wrapped method is re-used for different events (e.g. mousemove THEN click)
                                // see #724
                                if (!evt) return;

                                var eventType;
                                try {
                                    eventType = evt.type
                                } catch (e) {
                                    // just accessing event properties can throw an exception in some rare circumstances
                                    // see: https://github.com/getsentry/raven-js/issues/838
                                    return;
                                }
                                if (eventType === 'click')
                                    return clickHandler(evt);
                                else if (eventType === 'keypress')
                                    return keypressHandler(evt);
                            };
                        }
                        return orig.call(this, evtName, self.wrap(fn, undefined, before), capture, secure);
                    };
                }, wrappedBuiltIns);
                fill(proto, 'removeEventListener', function (orig) {
                    return function (evt, fn, capture, secure) {
                        try {
                            fn = fn && (fn.__raven_wrapper__ ? fn.__raven_wrapper__  : fn);
                        } catch (e) {
                            // ignore, accessing __raven_wrapper__ will throw in some Selenium environments
                        }
                        return orig.call(this, evt, fn, capture, secure);
                    };
                }, wrappedBuiltIns);
            }
        }

        fill(_window, 'setTimeout', wrapTimeFn, wrappedBuiltIns);
        fill(_window, 'setInterval', wrapTimeFn, wrappedBuiltIns);
        if (_window.requestAnimationFrame) {
            fill(_window, 'requestAnimationFrame', function (orig) {
                return function (cb) {
                    return orig(self.wrap(cb));
                };
            }, wrappedBuiltIns);
        }

        // event targets borrowed from bugsnag-js:
        // https://github.com/bugsnag/bugsnag-js/blob/master/src/bugsnag.js#L666
        var eventTargets = ['EventTarget', 'Window', 'Node', 'ApplicationCache', 'AudioTrackList', 'ChannelMergerNode', 'CryptoOperation', 'EventSource', 'FileReader', 'HTMLUnknownElement', 'IDBDatabase', 'IDBRequest', 'IDBTransaction', 'KeyOperation', 'MediaController', 'MessagePort', 'ModalWindow', 'Notification', 'SVGElementInstance', 'Screen', 'TextTrack', 'TextTrackCue', 'TextTrackList', 'WebSocket', 'WebSocketWorker', 'Worker', 'XMLHttpRequest', 'XMLHttpRequestEventTarget', 'XMLHttpRequestUpload'];
        for (var i = 0; i < eventTargets.length; i++) {
            wrapEventTarget(eventTargets[i]);
        }
    },


    /**
     * Instrument browser built-ins w/ breadcrumb capturing
     *  - XMLHttpRequests
     *  - DOM interactions (click/typing)
     *  - window.location changes
     *  - console
     *
     * Can be disabled or individually configured via the `autoBreadcrumbs` config option
     */
    _instrumentBreadcrumbs: function () {
        var self = this;
        var autoBreadcrumbs = this._globalOptions.autoBreadcrumbs;

        var wrappedBuiltIns = self._wrappedBuiltIns;

        function wrapProp(prop, xhr) {
            if (prop in xhr && isFunction(xhr[prop])) {
                fill(xhr, prop, function (orig) {
                    return self.wrap(orig);
                }); // intentionally don't track filled methods on XHR instances
            }
        }

        if (autoBreadcrumbs.xhr && 'XMLHttpRequest' in _window) {
            var xhrproto = XMLHttpRequest.prototype;
            fill(xhrproto, 'open', function(origOpen) {
                return function (method, url) { // preserve arity

                    // if Sentry key appears in URL, don't capture
                    if (isString(url) && url.indexOf(self._globalKey) === -1) {
                        this.__raven_xhr = {
                            method: method,
                            url: url,
                            status_code: null
                        };
                    }

                    return origOpen.apply(this, arguments);
                };
            }, wrappedBuiltIns);

            fill(xhrproto, 'send', function(origSend) {
                return function (data) { // preserve arity
                    var xhr = this;

                    function onreadystatechangeHandler() {
                        if (xhr.__raven_xhr && (xhr.readyState === 1 || xhr.readyState === 4)) {
                            try {
                                // touching statusCode in some platforms throws
                                // an exception
                                xhr.__raven_xhr.status_code = xhr.status;
                            } catch (e) { /* do nothing */ }
                            self.captureBreadcrumb({
                                type: 'http',
                                category: 'xhr',
                                data: xhr.__raven_xhr
                            });
                        }
                    }

                    var props = ['onload', 'onerror', 'onprogress'];
                    for (var j = 0; j < props.length; j++) {
                        wrapProp(props[j], xhr);
                    }

                    if ('onreadystatechange' in xhr && isFunction(xhr.onreadystatechange)) {
                        fill(xhr, 'onreadystatechange', function (orig) {
                            return self.wrap(orig, undefined, onreadystatechangeHandler);
                        } /* intentionally don't track this instrumentation */);
                    } else {
                        // if onreadystatechange wasn't actually set by the page on this xhr, we
                        // are free to set our own and capture the breadcrumb
                        xhr.onreadystatechange = onreadystatechangeHandler;
                    }

                    return origSend.apply(this, arguments);
                };
            }, wrappedBuiltIns);
        }

        if (autoBreadcrumbs.xhr && 'fetch' in _window) {
            fill(_window, 'fetch', function(origFetch) {
                return function (fn, t) { // preserve arity
                    // Make a copy of the arguments to prevent deoptimization
                    // https://github.com/petkaantonov/bluebird/wiki/Optimization-killers#32-leaking-arguments
                    var args = new Array(arguments.length);
                    for(var i = 0; i < args.length; ++i) {
                        args[i] = arguments[i];
                    }

                    var method = 'GET';

                    if (args[1] && args[1].method) {
                        method = args[1].method;
                    }

                    var fetchData = {
                        method: method,
                        url: args[0],
                        status_code: null
                    };

                    self.captureBreadcrumb({
                        type: 'http',
                        category: 'fetch',
                        data: fetchData
                    });

                    return origFetch.apply(this, args).then(function (response) {
                        fetchData.status_code = response.status;

                        return response;
                    });
                };
            }, wrappedBuiltIns);
        }

        // Capture breadcrumbs from any click that is unhandled / bubbled up all the way
        // to the document. Do this before we instrument addEventListener.
        if (autoBreadcrumbs.dom && this._hasDocument) {
            if (_document.addEventListener) {
                _document.addEventListener('click', self._breadcrumbEventHandler('click'), false);
                _document.addEventListener('keypress', self._keypressEventHandler(), false);
            }
            else {
                // IE8 Compatibility
                _document.attachEvent('onclick', self._breadcrumbEventHandler('click'));
                _document.attachEvent('onkeypress', self._keypressEventHandler());
            }
        }

        // record navigation (URL) changes
        // NOTE: in Chrome App environment, touching history.pushState, *even inside
        //       a try/catch block*, will cause Chrome to output an error to console.error
        // borrowed from: https://github.com/angular/angular.js/pull/13945/files
        var chrome = _window.chrome;
        var isChromePackagedApp = chrome && chrome.app && chrome.app.runtime;
        var hasPushState = !isChromePackagedApp && _window.history && history.pushState;
        if (autoBreadcrumbs.location && hasPushState) {
            // TODO: remove onpopstate handler on uninstall()
            var oldOnPopState = _window.onpopstate;
            _window.onpopstate = function () {
                var currentHref = self._location.href;
                self._captureUrlChange(self._lastHref, currentHref);

                if (oldOnPopState) {
                    return oldOnPopState.apply(this, arguments);
                }
            };

            fill(history, 'pushState', function (origPushState) {
                // note history.pushState.length is 0; intentionally not declaring
                // params to preserve 0 arity
                return function (/* state, title, url */) {
                    var url = arguments.length > 2 ? arguments[2] : undefined;

                    // url argument is optional
                    if (url) {
                        // coerce to string (this is what pushState does)
                        self._captureUrlChange(self._lastHref, url + '');
                    }

                    return origPushState.apply(this, arguments);
                };
            }, wrappedBuiltIns);
        }

        if (autoBreadcrumbs.console && 'console' in _window && console.log) {
            // console
            var consoleMethodCallback = function (msg, data) {
                self.captureBreadcrumb({
                    message: msg,
                    level: data.level,
                    category: 'console'
                });
            };

            each(['debug', 'info', 'warn', 'error', 'log'], function (_, level) {
                wrapConsoleMethod(console, level, consoleMethodCallback);
            });
        }

    },

    _restoreBuiltIns: function () {
        // restore any wrapped builtins
        var builtin;
        while (this._wrappedBuiltIns.length) {
            builtin = this._wrappedBuiltIns.shift();

            var obj = builtin[0],
              name = builtin[1],
              orig = builtin[2];

            obj[name] = orig;
        }
    },

    _drainPlugins: function() {
        var self = this;

        // FIX ME TODO
        each(this._plugins, function(_, plugin) {
            var installer = plugin[0];
            var args = plugin[1];
            installer.apply(self, [self].concat(args));
        });
    },

    _parseDSN: function(str) {
        var m = dsnPattern.exec(str),
            dsn = {},
            i = 7;

        try {
            while (i--) dsn[dsnKeys[i]] = m[i] || '';
        } catch(e) {
            throw new RavenConfigError('Invalid DSN: ' + str);
        }

        if (dsn.pass && !this._globalOptions.allowSecretKey) {
            throw new RavenConfigError('Do not specify your secret key in the DSN. See: http://bit.ly/raven-secret-key');
        }

        return dsn;
    },

    _getGlobalServer: function(uri) {
        // assemble the endpoint from the uri pieces
        var globalServer = '//' + uri.host +
            (uri.port ? ':' + uri.port : '');

        if (uri.protocol) {
            globalServer = uri.protocol + ':' + globalServer;
        }
        return globalServer;
    },

    _handleOnErrorStackInfo: function() {
        // if we are intentionally ignoring errors via onerror, bail out
        if (!this._ignoreOnError) {
            this._handleStackInfo.apply(this, arguments);
        }
    },

    _handleStackInfo: function(stackInfo, options) {
        var frames = this._prepareFrames(stackInfo, options);

        this._triggerEvent('handle', {
            stackInfo: stackInfo,
            options: options
        });

        this._processException(
            stackInfo.name,
            stackInfo.message,
            stackInfo.url,
            stackInfo.lineno,
            frames,
            options
        );
    },

    _prepareFrames: function(stackInfo, options) {
        var self = this;
        var frames = [];
        if (stackInfo.stack && stackInfo.stack.length) {
            each(stackInfo.stack, function(i, stack) {
                var frame = self._normalizeFrame(stack);
                if (frame) {
                    frames.push(frame);
                }
            });

            // e.g. frames captured via captureMessage throw
            if (options && options.trimHeadFrames) {
                for (var j = 0; j < options.trimHeadFrames && j < frames.length; j++) {
                    frames[j].in_app = false;
                }
            }
        }
        frames = frames.slice(0, this._globalOptions.stackTraceLimit);
        return frames;
    },


    _normalizeFrame: function(frame) {
        if (!frame.url) return;

        // normalize the frames data
        var normalized = {
            filename:   frame.url,
            lineno:     frame.line,
            colno:      frame.column,
            'function': frame.func || '?'
        };

        normalized.in_app = !( // determine if an exception came from outside of our app
            // first we check the global includePaths list.
            !!this._globalOptions.includePaths.test && !this._globalOptions.includePaths.test(normalized.filename) ||
            // Now we check for fun, if the function name is Raven or TraceKit
            /(Raven|TraceKit)\./.test(normalized['function']) ||
            // finally, we do a last ditch effort and check for raven.min.js
            /raven\.(min\.)?js$/.test(normalized.filename)
        );

        return normalized;
    },

    _processException: function(type, message, fileurl, lineno, frames, options) {
        var stacktrace;
        if (!!this._globalOptions.ignoreErrors.test && this._globalOptions.ignoreErrors.test(message)) return;

        message += '';

        if (frames && frames.length) {
            fileurl = frames[0].filename || fileurl;
            // Sentry expects frames oldest to newest
            // and JS sends them as newest to oldest
            frames.reverse();
            stacktrace = {frames: frames};
        } else if (fileurl) {
            stacktrace = {
                frames: [{
                    filename: fileurl,
                    lineno: lineno,
                    in_app: true
                }]
            };
        }

        if (!!this._globalOptions.ignoreUrls.test && this._globalOptions.ignoreUrls.test(fileurl)) return;
        if (!!this._globalOptions.whitelistUrls.test && !this._globalOptions.whitelistUrls.test(fileurl)) return;

        var data = objectMerge({
            // sentry.interfaces.Exception
            exception: {
                values: [{
                    type: type,
                    value: message,
                    stacktrace: stacktrace
                }]
            },
            culprit: fileurl
        }, options);

        // Fire away!
        this._send(data);
    },

    _trimPacket: function(data) {
        // For now, we only want to truncate the two different messages
        // but this could/should be expanded to just trim everything
        var max = this._globalOptions.maxMessageLength;
        if (data.message) {
            data.message = truncate(data.message, max);
        }
        if (data.exception) {
            var exception = data.exception.values[0];
            exception.value = truncate(exception.value, max);
        }

        return data;
    },

    _getHttpData: function() {
        if (!this._hasNavigator && !this._hasDocument) return;
        var httpData = {};

        if (this._hasNavigator && _navigator.userAgent) {
            httpData.headers = {
              'User-Agent': navigator.userAgent
            };
        }

        if (this._hasDocument) {
            if (_document.location && _document.location.href) {
                httpData.url = _document.location.href;
            }
            if (_document.referrer) {
                if (!httpData.headers) httpData.headers = {};
                httpData.headers.Referer = _document.referrer;
            }
        }

        return httpData;
    },

    _resetBackoff: function() {
        this._backoffDuration = 0;
        this._backoffStart = null;
    },

    _shouldBackoff: function() {
        return this._backoffDuration && now() - this._backoffStart < this._backoffDuration;
    },

    /**
     * Returns true if the in-process data payload matches the signature
     * of the previously-sent data
     *
     * NOTE: This has to be done at this level because TraceKit can generate
     *       data from window.onerror WITHOUT an exception object (IE8, IE9,
     *       other old browsers). This can take the form of an "exception"
     *       data object with a single frame (derived from the onerror args).
     */
    _isRepeatData: function (current) {
        var last = this._lastData;

        if (!last ||
            current.message !== last.message || // defined for captureMessage
            current.culprit !== last.culprit)   // defined for captureException/onerror
            return false;

        // Stacktrace interface (i.e. from captureMessage)
        if (current.stacktrace || last.stacktrace) {
            return isSameStacktrace(current.stacktrace, last.stacktrace);
        }
        // Exception interface (i.e. from captureException/onerror)
        else if (current.exception || last.exception) {
            return isSameException(current.exception, last.exception);
        }

        return true;
    },

    _setBackoffState: function(request) {
        // If we are already in a backoff state, don't change anything
        if (this._shouldBackoff()) {
            return;
        }

        var status = request.status;

        // 400 - project_id doesn't exist or some other fatal
        // 401 - invalid/revoked dsn
        // 429 - too many requests
        if (!(status === 400 || status === 401 || status === 429))
            return;

        var retry;
        try {
            // If Retry-After is not in Access-Control-Expose-Headers, most
            // browsers will throw an exception trying to access it
            retry = request.getResponseHeader('Retry-After');
            retry = parseInt(retry, 10) * 1000; // Retry-After is returned in seconds
        } catch (e) {
            /* eslint no-empty:0 */
        }


        this._backoffDuration = retry
            // If Sentry server returned a Retry-After value, use it
            ? retry
            // Otherwise, double the last backoff duration (starts at 1 sec)
            : this._backoffDuration * 2 || 1000;

        this._backoffStart = now();
    },

    _send: function(data) {
        var globalOptions = this._globalOptions;

        var baseData = {
            project: this._globalProject,
            logger: globalOptions.logger,
            platform: 'javascript'
        }, httpData = this._getHttpData();

        if (httpData) {
            baseData.request = httpData;
        }

        // HACK: delete `trimHeadFrames` to prevent from appearing in outbound payload
        if (data.trimHeadFrames) delete data.trimHeadFrames;

        data = objectMerge(baseData, data);

        // Merge in the tags and extra separately since objectMerge doesn't handle a deep merge
        data.tags = objectMerge(objectMerge({}, this._globalContext.tags), data.tags);
        data.extra = objectMerge(objectMerge({}, this._globalContext.extra), data.extra);

        // Send along our own collected metadata with extra
        data.extra['session:duration'] = now() - this._startTime;

        if (this._breadcrumbs && this._breadcrumbs.length > 0) {
            // intentionally make shallow copy so that additions
            // to breadcrumbs aren't accidentally sent in this request
            data.breadcrumbs = {
                values: [].slice.call(this._breadcrumbs, 0)
            };
        }

        // If there are no tags/extra, strip the key from the payload alltogther.
        if (isEmptyObject(data.tags)) delete data.tags;

        if (this._globalContext.user) {
            // sentry.interfaces.User
            data.user = this._globalContext.user;
        }

        // Include the environment if it's defined in globalOptions
        if (globalOptions.environment) data.environment = globalOptions.environment;

        // Include the release if it's defined in globalOptions
        if (globalOptions.release) data.release = globalOptions.release;

        // Include server_name if it's defined in globalOptions
        if (globalOptions.serverName) data.server_name = globalOptions.serverName;

        if (isFunction(globalOptions.dataCallback)) {
            data = globalOptions.dataCallback(data) || data;
        }

        // Why??????????
        if (!data || isEmptyObject(data)) {
            return;
        }

        // Check if the request should be filtered or not
        if (isFunction(globalOptions.shouldSendCallback) && !globalOptions.shouldSendCallback(data)) {
            return;
        }

        // Backoff state: Sentry server previously responded w/ an error (e.g. 429 - too many requests),
        // so drop requests until "cool-off" period has elapsed.
        if (this._shouldBackoff()) {
            this._logDebug('warn', 'Raven dropped error due to backoff: ', data);
            return;
        }

        if (typeof globalOptions.sampleRate === 'number') {
            if (Math.random() < globalOptions.sampleRate) {
                this._sendProcessedPayload(data);
            }
        } else {
            this._sendProcessedPayload(data);
        }
    },

    _getUuid: function () {
      return uuid4();
    },

    _sendProcessedPayload: function(data, callback) {
        var self = this;
        var globalOptions = this._globalOptions;

        if (!this.isSetup()) return;

        // Send along an event_id if not explicitly passed.
        // This event_id can be used to reference the error within Sentry itself.
        // Set lastEventId after we know the error should actually be sent
        this._lastEventId = data.event_id || (data.event_id = this._getUuid());

        // Try and clean up the packet before sending by truncating long values
        data = this._trimPacket(data);

        // ideally duplicate error testing should occur *before* dataCallback/shouldSendCallback,
        // but this would require copying an un-truncated copy of the data packet, which can be
        // arbitrarily deep (extra_data) -- could be worthwhile? will revisit
        if (!this._globalOptions.allowDuplicates && this._isRepeatData(data)) {
            this._logDebug('warn', 'Raven dropped repeat event: ', data);
            return;
        }

        // Store outbound payload after trim
        this._lastData = data;

        this._logDebug('debug', 'Raven about to send:', data);

        var auth = {
            sentry_version: '7',
            sentry_client: 'raven-js/' + this.VERSION,
            sentry_key: this._globalKey
        };
        if (this._globalSecret) {
            auth.sentry_secret = this._globalSecret;
        }

        var exception = data.exception && data.exception.values[0];
        this.captureBreadcrumb({
            category: 'sentry',
            message: exception
                ? (exception.type ? exception.type + ': ' : '') + exception.value
                : data.message,
            event_id: data.event_id,
            level: data.level || 'error' // presume error unless specified
        });

        var url = this._globalEndpoint;
        (globalOptions.transport || this._makeRequest).call(this, {
            url: url,
            auth: auth,
            data: data,
            options: globalOptions,
            onSuccess: function success() {
                self._resetBackoff();

                self._triggerEvent('success', {
                    data: data,
                    src: url
                });
                callback && callback();
            },
            onError: function failure(error) {
                self._logDebug('error', 'Raven transport failed to send: ', error);

                if (error.request) {
                    self._setBackoffState(error.request);
                }

                self._triggerEvent('failure', {
                    data: data,
                    src: url
                });
                error = error || new Error('Raven send failed (no additional details provided)');
                callback && callback(error);
            }
        });
    },

    _makeRequest: function(opts) {
        var request = new XMLHttpRequest();

        // if browser doesn't support CORS (e.g. IE7), we are out of luck
        var hasCORS =
            'withCredentials' in request ||
            typeof XDomainRequest !== 'undefined';

        if (!hasCORS) return;

        var url = opts.url;

        if ('withCredentials' in request) {
            request.onreadystatechange = function () {
                if (request.readyState !== 4) {
                    return;
                } else if (request.status === 200) {
                    opts.onSuccess && opts.onSuccess();
                } else if (opts.onError) {
                    var err = new Error('Sentry error code: ' + request.status);
                    err.request = request;
                    opts.onError(err);
                }
            };
        } else {
            request = new XDomainRequest();
            // xdomainrequest cannot go http -> https (or vice versa),
            // so always use protocol relative
            url = url.replace(/^https?:/, '');

            // onreadystatechange not supported by XDomainRequest
            if (opts.onSuccess) {
                request.onload = opts.onSuccess;
            }
            if (opts.onError) {
                request.onerror = function () {
                    var err = new Error('Sentry error code: XDomainRequest');
                    err.request = request;
                    opts.onError(err);
                }
            }
        }

        // NOTE: auth is intentionally sent as part of query string (NOT as custom
        //       HTTP header) so as to avoid preflight CORS requests
        request.open('POST', url + '?' + urlencode(opts.auth));
        request.send(stringify(opts.data));
    },

    _logDebug: function(level) {
        if (this._originalConsoleMethods[level] && this.debug) {
            // In IE<10 console methods do not have their own 'apply' method
            Function.prototype.apply.call(
                this._originalConsoleMethods[level],
                this._originalConsole,
                [].slice.call(arguments, 1)
            );
        }
    },

    _mergeContext: function(key, context) {
        if (isUndefined(context)) {
            delete this._globalContext[key];
        } else {
            this._globalContext[key] = objectMerge(this._globalContext[key] || {}, context);
        }
    }
};

/*------------------------------------------------
 * utils
 *
 * conditionally exported for test via Raven.utils
 =================================================
 */
var objectPrototype = Object.prototype;

function isUndefined(what) {
    return what === void 0;
}

function isFunction(what) {
    return typeof what === 'function';
}

function isString(what) {
    return objectPrototype.toString.call(what) === '[object String]';
}


function isEmptyObject(what) {
    for (var _ in what) return false;  // eslint-disable-line guard-for-in, no-unused-vars
    return true;
}

function each(obj, callback) {
    var i, j;

    if (isUndefined(obj.length)) {
        for (i in obj) {
            if (hasKey(obj, i)) {
                callback.call(null, i, obj[i]);
            }
        }
    } else {
        j = obj.length;
        if (j) {
            for (i = 0; i < j; i++) {
                callback.call(null, i, obj[i]);
            }
        }
    }
}

function objectMerge(obj1, obj2) {
    if (!obj2) {
        return obj1;
    }
    each(obj2, function(key, value){
        obj1[key] = value;
    });
    return obj1;
}

function truncate(str, max) {
    return !max || str.length <= max ? str : str.substr(0, max) + '\u2026';
}

/**
 * hasKey, a better form of hasOwnProperty
 * Example: hasKey(MainHostObject, property) === true/false
 *
 * @param {Object} host object to check property
 * @param {string} key to check
 */
function hasKey(object, key) {
    return objectPrototype.hasOwnProperty.call(object, key);
}

function joinRegExp(patterns) {
    // Combine an array of regular expressions and strings into one large regexp
    // Be mad.
    var sources = [],
        i = 0, len = patterns.length,
        pattern;

    for (; i < len; i++) {
        pattern = patterns[i];
        if (isString(pattern)) {
            // If it's a string, we need to escape it
            // Taken from: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
            sources.push(pattern.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, '\\$1'));
        } else if (pattern && pattern.source) {
            // If it's a regexp already, we want to extract the source
            sources.push(pattern.source);
        }
        // Intentionally skip other cases
    }
    return new RegExp(sources.join('|'), 'i');
}

function urlencode(o) {
    var pairs = [];
    each(o, function(key, value) {
        pairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(value));
    });
    return pairs.join('&');
}

// borrowed from https://tools.ietf.org/html/rfc3986#appendix-B
// intentionally using regex and not <a/> href parsing trick because React Native and other
// environments where DOM might not be available
function parseUrl(url) {
    var match = url.match(/^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/);
    if (!match) return {};

    // coerce to undefined values to empty string so we don't get 'undefined'
    var query = match[6] || '';
    var fragment = match[8] || '';
    return {
        protocol: match[2],
        host: match[4],
        path: match[5],
        relative: match[5] + query + fragment // everything minus origin
    };
}
function uuid4() {
    var crypto = _window.crypto || _window.msCrypto;

    if (!isUndefined(crypto) && crypto.getRandomValues) {
        // Use window.crypto API if available
        var arr = new Uint16Array(8);
        crypto.getRandomValues(arr);

        // set 4 in byte 7
        arr[3] = arr[3] & 0xFFF | 0x4000;
        // set 2 most significant bits of byte 9 to '10'
        arr[4] = arr[4] & 0x3FFF | 0x8000;

        var pad = function(num) {
            var v = num.toString(16);
            while (v.length < 4) {
                v = '0' + v;
            }
            return v;
        };

        return pad(arr[0]) + pad(arr[1]) + pad(arr[2]) + pad(arr[3]) + pad(arr[4]) +
        pad(arr[5]) + pad(arr[6]) + pad(arr[7]);
    } else {
        // http://stackoverflow.com/questions/105034/how-to-create-a-guid-uuid-in-javascript/2117523#2117523
        return 'xxxxxxxxxxxx4xxxyxxxxxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
            var r = Math.random()*16|0,
                v = c === 'x' ? r : r&0x3|0x8;
            return v.toString(16);
        });
    }
}

/**
 * Given a child DOM element, returns a query-selector statement describing that
 * and its ancestors
 * e.g. [HTMLElement] => body > div > input#foo.btn[name=baz]
 * @param elem
 * @returns {string}
 */
function htmlTreeAsString(elem) {
    /* eslint no-extra-parens:0*/
    var MAX_TRAVERSE_HEIGHT = 5,
        MAX_OUTPUT_LEN = 80,
        out = [],
        height = 0,
        len = 0,
        separator = ' > ',
        sepLength = separator.length,
        nextStr;

    while (elem && height++ < MAX_TRAVERSE_HEIGHT) {

        nextStr = htmlElementAsString(elem);
        // bail out if
        // - nextStr is the 'html' element
        // - the length of the string that would be created exceeds MAX_OUTPUT_LEN
        //   (ignore this limit if we are on the first iteration)
        if (nextStr === 'html' || height > 1 && len + (out.length * sepLength) + nextStr.length >= MAX_OUTPUT_LEN) {
            break;
        }

        out.push(nextStr);

        len += nextStr.length;
        elem = elem.parentNode;
    }

    return out.reverse().join(separator);
}

/**
 * Returns a simple, query-selector representation of a DOM element
 * e.g. [HTMLElement] => input#foo.btn[name=baz]
 * @param HTMLElement
 * @returns {string}
 */
function htmlElementAsString(elem) {
    var out = [],
        className,
        classes,
        key,
        attr,
        i;

    if (!elem || !elem.tagName) {
        return '';
    }

    out.push(elem.tagName.toLowerCase());
    if (elem.id) {
        out.push('#' + elem.id);
    }

    className = elem.className;
    if (className && isString(className)) {
        classes = className.split(/\s+/);
        for (i = 0; i < classes.length; i++) {
            out.push('.' + classes[i]);
        }
    }
    var attrWhitelist = ['type', 'name', 'title', 'alt'];
    for (i = 0; i < attrWhitelist.length; i++) {
        key = attrWhitelist[i];
        attr = elem.getAttribute(key);
        if (attr) {
            out.push('[' + key + '="' + attr + '"]');
        }
    }
    return out.join('');
}

/**
 * Returns true if either a OR b is truthy, but not both
 */
function isOnlyOneTruthy(a, b) {
    return !!(!!a ^ !!b);
}

/**
 * Returns true if the two input exception interfaces have the same content
 */
function isSameException(ex1, ex2) {
    if (isOnlyOneTruthy(ex1, ex2))
        return false;

    ex1 = ex1.values[0];
    ex2 = ex2.values[0];

    if (ex1.type !== ex2.type ||
        ex1.value !== ex2.value)
        return false;

    return isSameStacktrace(ex1.stacktrace, ex2.stacktrace);
}

/**
 * Returns true if the two input stack trace interfaces have the same content
 */
function isSameStacktrace(stack1, stack2) {
    if (isOnlyOneTruthy(stack1, stack2))
        return false;

    var frames1 = stack1.frames;
    var frames2 = stack2.frames;

    // Exit early if frame count differs
    if (frames1.length !== frames2.length)
        return false;

    // Iterate through every frame; bail out if anything differs
    var a, b;
    for (var i = 0; i < frames1.length; i++) {
        a = frames1[i];
        b = frames2[i];
        if (a.filename !== b.filename ||
            a.lineno !== b.lineno ||
            a.colno !== b.colno ||
            a['function'] !== b['function'])
            return false;
    }
    return true;
}

/**
 * Polyfill a method
 * @param obj object e.g. `document`
 * @param name method name present on object e.g. `addEventListener`
 * @param replacement replacement function
 * @param track {optional} record instrumentation to an array
 */
function fill(obj, name, replacement, track) {
    var orig = obj[name];
    obj[name] = replacement(orig);
    if (track) {
        track.push([obj, name, orig]);
    }
}

if (typeof __DEV__ !== 'undefined' && __DEV__) {
    Raven.utils = {
        isUndefined: isUndefined,
        isFunction: isFunction,
        isString: isString,
        isObject: isObject,
        isEmptyObject: isEmptyObject,
        isError: isError,
        each: each,
        objectMerge: objectMerge,
        truncate: truncate,
        hasKey: hasKey,
        joinRegExp: joinRegExp,
        urlencode: urlencode,
        uuid4: uuid4,
        htmlTreeAsString: htmlTreeAsString,
        htmlElementAsString: htmlElementAsString,
        parseUrl: parseUrl,
        fill: fill
    };
};

// Deprecations
Raven.prototype.setUser = Raven.prototype.setUserContext;
Raven.prototype.setReleaseContext = Raven.prototype.setRelease;

module.exports = Raven;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"1":1,"2":2,"5":5,"6":6,"7":7}],4:[function(_dereq_,module,exports){
(function (global){
/**
 * Enforces a single instance of the Raven client, and the
 * main entry point for Raven. If you are a consumer of the
 * Raven library, you SHOULD load this file (vs raven.js).
 **/

'use strict';

var RavenConstructor = _dereq_(3);

// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)
var _window = typeof window !== 'undefined' ? window
            : typeof global !== 'undefined' ? global
            : typeof self !== 'undefined' ? self
            : {};
var _Raven = _window.Raven;

var Raven = new RavenConstructor();

/*
 * Allow multiple versions of Raven to be installed.
 * Strip Raven from the global context and returns the instance.
 *
 * @return {Raven}
 */
Raven.noConflict = function () {
    _window.Raven = _Raven;
    return Raven;
};

Raven.afterLoad();

module.exports = Raven;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"3":3}],5:[function(_dereq_,module,exports){
'use strict';

function isObject(what) {
    return typeof what === 'object' && what !== null;
}

// Sorta yanked from https://github.com/joyent/node/blob/aa3b4b4/lib/util.js#L560
// with some tiny modifications
function isError(what) {
    var toString = {}.toString.call(what);
    return isObject(what) &&
        toString === '[object Error]' ||
        toString === '[object Exception]' || // Firefox NS_ERROR_FAILURE Exceptions
        what instanceof Error;
}

module.exports = {
    isObject: isObject,
    isError: isError
};
},{}],6:[function(_dereq_,module,exports){
(function (global){
'use strict';

var utils = _dereq_(5);

/*
 TraceKit - Cross brower stack traces

 This was originally forked from github.com/occ/TraceKit, but has since been
 largely re-written and is now maintained as part of raven-js.  Tests for
 this are in test/vendor.

 MIT license
*/

var TraceKit = {
    collectWindowErrors: true,
    debug: false
};

// This is to be defensive in environments where window does not exist (see https://github.com/getsentry/raven-js/pull/785)
var _window = typeof window !== 'undefined' ? window
            : typeof global !== 'undefined' ? global
            : typeof self !== 'undefined' ? self
            : {};

// global reference to slice
var _slice = [].slice;
var UNKNOWN_FUNCTION = '?';

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error#Error_types
var ERROR_TYPES_RE = /^(?:[Uu]ncaught (?:exception: )?)?(?:((?:Eval|Internal|Range|Reference|Syntax|Type|URI|)Error): )?(.*)$/;

function getLocationHref() {
    if (typeof document === 'undefined' || typeof document.location === 'undefined')
        return '';

    return document.location.href;
}


/**
 * TraceKit.report: cross-browser processing of unhandled exceptions
 *
 * Syntax:
 *   TraceKit.report.subscribe(function(stackInfo) { ... })
 *   TraceKit.report.unsubscribe(function(stackInfo) { ... })
 *   TraceKit.report(exception)
 *   try { ...code... } catch(ex) { TraceKit.report(ex); }
 *
 * Supports:
 *   - Firefox: full stack trace with line numbers, plus column number
 *              on top frame; column number is not guaranteed
 *   - Opera:   full stack trace with line and column numbers
 *   - Chrome:  full stack trace with line and column numbers
 *   - Safari:  line and column number for the top frame only; some frames
 *              may be missing, and column number is not guaranteed
 *   - IE:      line and column number for the top frame only; some frames
 *              may be missing, and column number is not guaranteed
 *
 * In theory, TraceKit should work on all of the following versions:
 *   - IE5.5+ (only 8.0 tested)
 *   - Firefox 0.9+ (only 3.5+ tested)
 *   - Opera 7+ (only 10.50 tested; versions 9 and earlier may require
 *     Exceptions Have Stacktrace to be enabled in opera:config)
 *   - Safari 3+ (only 4+ tested)
 *   - Chrome 1+ (only 5+ tested)
 *   - Konqueror 3.5+ (untested)
 *
 * Requires TraceKit.computeStackTrace.
 *
 * Tries to catch all unhandled exceptions and report them to the
 * subscribed handlers. Please note that TraceKit.report will rethrow the
 * exception. This is REQUIRED in order to get a useful stack trace in IE.
 * If the exception does not reach the top of the browser, you will only
 * get a stack trace from the point where TraceKit.report was called.
 *
 * Handlers receive a stackInfo object as described in the
 * TraceKit.computeStackTrace docs.
 */
TraceKit.report = (function reportModuleWrapper() {
    var handlers = [],
        lastArgs = null,
        lastException = null,
        lastExceptionStack = null;

    /**
     * Add a crash handler.
     * @param {Function} handler
     */
    function subscribe(handler) {
        installGlobalHandler();
        handlers.push(handler);
    }

    /**
     * Remove a crash handler.
     * @param {Function} handler
     */
    function unsubscribe(handler) {
        for (var i = handlers.length - 1; i >= 0; --i) {
            if (handlers[i] === handler) {
                handlers.splice(i, 1);
            }
        }
    }

    /**
     * Remove all crash handlers.
     */
    function unsubscribeAll() {
        uninstallGlobalHandler();
        handlers = [];
    }

    /**
     * Dispatch stack information to all handlers.
     * @param {Object.<string, *>} stack
     */
    function notifyHandlers(stack, isWindowError) {
        var exception = null;
        if (isWindowError && !TraceKit.collectWindowErrors) {
          return;
        }
        for (var i in handlers) {
            if (handlers.hasOwnProperty(i)) {
                try {
                    handlers[i].apply(null, [stack].concat(_slice.call(arguments, 2)));
                } catch (inner) {
                    exception = inner;
                }
            }
        }

        if (exception) {
            throw exception;
        }
    }

    var _oldOnerrorHandler, _onErrorHandlerInstalled;

    /**
     * Ensures all global unhandled exceptions are recorded.
     * Supported by Gecko and IE.
     * @param {string} message Error message.
     * @param {string} url URL of script that generated the exception.
     * @param {(number|string)} lineNo The line number at which the error
     * occurred.
     * @param {?(number|string)} colNo The column number at which the error
     * occurred.
     * @param {?Error} ex The actual Error object.
     */
    function traceKitWindowOnError(message, url, lineNo, colNo, ex) {
        var stack = null;

        if (lastExceptionStack) {
            TraceKit.computeStackTrace.augmentStackTraceWithInitialElement(lastExceptionStack, url, lineNo, message);
            processLastException();
        } else if (ex && utils.isError(ex)) {
            // non-string `ex` arg; attempt to extract stack trace

            // New chrome and blink send along a real error object
            // Let's just report that like a normal error.
            // See: https://mikewest.org/2013/08/debugging-runtime-errors-with-window-onerror
            stack = TraceKit.computeStackTrace(ex);
            notifyHandlers(stack, true);
        } else {
            var location = {
                'url': url,
                'line': lineNo,
                'column': colNo
            };

            var name = undefined;
            var msg = message; // must be new var or will modify original `arguments`
            var groups;
            if ({}.toString.call(message) === '[object String]') {
                var groups = message.match(ERROR_TYPES_RE);
                if (groups) {
                    name = groups[1];
                    msg = groups[2];
                }
            }

            location.func = UNKNOWN_FUNCTION;

            stack = {
                'name': name,
                'message': msg,
                'url': getLocationHref(),
                'stack': [location]
            };
            notifyHandlers(stack, true);
        }

        if (_oldOnerrorHandler) {
            return _oldOnerrorHandler.apply(this, arguments);
        }

        return false;
    }

    function installGlobalHandler ()
    {
        if (_onErrorHandlerInstalled) {
            return;
        }
        _oldOnerrorHandler = _window.onerror;
        _window.onerror = traceKitWindowOnError;
        _onErrorHandlerInstalled = true;
    }

    function uninstallGlobalHandler ()
    {
        if (!_onErrorHandlerInstalled) {
            return;
        }
        _window.onerror = _oldOnerrorHandler;
        _onErrorHandlerInstalled = false;
        _oldOnerrorHandler = undefined;
    }

    function processLastException() {
        var _lastExceptionStack = lastExceptionStack,
            _lastArgs = lastArgs;
        lastArgs = null;
        lastExceptionStack = null;
        lastException = null;
        notifyHandlers.apply(null, [_lastExceptionStack, false].concat(_lastArgs));
    }

    /**
     * Reports an unhandled Error to TraceKit.
     * @param {Error} ex
     * @param {?boolean} rethrow If false, do not re-throw the exception.
     * Only used for window.onerror to not cause an infinite loop of
     * rethrowing.
     */
    function report(ex, rethrow) {
        var args = _slice.call(arguments, 1);
        if (lastExceptionStack) {
            if (lastException === ex) {
                return; // already caught by an inner catch block, ignore
            } else {
              processLastException();
            }
        }

        var stack = TraceKit.computeStackTrace(ex);
        lastExceptionStack = stack;
        lastException = ex;
        lastArgs = args;

        // If the stack trace is incomplete, wait for 2 seconds for
        // slow slow IE to see if onerror occurs or not before reporting
        // this exception; otherwise, we will end up with an incomplete
        // stack trace
        setTimeout(function () {
            if (lastException === ex) {
                processLastException();
            }
        }, (stack.incomplete ? 2000 : 0));

        if (rethrow !== false) {
            throw ex; // re-throw to propagate to the top level (and cause window.onerror)
        }
    }

    report.subscribe = subscribe;
    report.unsubscribe = unsubscribe;
    report.uninstall = unsubscribeAll;
    return report;
}());

/**
 * TraceKit.computeStackTrace: cross-browser stack traces in JavaScript
 *
 * Syntax:
 *   s = TraceKit.computeStackTrace(exception) // consider using TraceKit.report instead (see below)
 * Returns:
 *   s.name              - exception name
 *   s.message           - exception message
 *   s.stack[i].url      - JavaScript or HTML file URL
 *   s.stack[i].func     - function name, or empty for anonymous functions (if guessing did not work)
 *   s.stack[i].args     - arguments passed to the function, if known
 *   s.stack[i].line     - line number, if known
 *   s.stack[i].column   - column number, if known
 *
 * Supports:
 *   - Firefox:  full stack trace with line numbers and unreliable column
 *               number on top frame
 *   - Opera 10: full stack trace with line and column numbers
 *   - Opera 9-: full stack trace with line numbers
 *   - Chrome:   full stack trace with line and column numbers
 *   - Safari:   line and column number for the topmost stacktrace element
 *               only
 *   - IE:       no line numbers whatsoever
 *
 * Tries to guess names of anonymous functions by looking for assignments
 * in the source code. In IE and Safari, we have to guess source file names
 * by searching for function bodies inside all page scripts. This will not
 * work for scripts that are loaded cross-domain.
 * Here be dragons: some function names may be guessed incorrectly, and
 * duplicate functions may be mismatched.
 *
 * TraceKit.computeStackTrace should only be used for tracing purposes.
 * Logging of unhandled exceptions should be done with TraceKit.report,
 * which builds on top of TraceKit.computeStackTrace and provides better
 * IE support by utilizing the window.onerror event to retrieve information
 * about the top of the stack.
 *
 * Note: In IE and Safari, no stack trace is recorded on the Error object,
 * so computeStackTrace instead walks its *own* chain of callers.
 * This means that:
 *  * in Safari, some methods may be missing from the stack trace;
 *  * in IE, the topmost function in the stack trace will always be the
 *    caller of computeStackTrace.
 *
 * This is okay for tracing (because you are likely to be calling
 * computeStackTrace from the function you want to be the topmost element
 * of the stack trace anyway), but not okay for logging unhandled
 * exceptions (because your catch block will likely be far away from the
 * inner function that actually caused the exception).
 *
 */
TraceKit.computeStackTrace = (function computeStackTraceWrapper() {
    /**
     * Escapes special characters, except for whitespace, in a string to be
     * used inside a regular expression as a string literal.
     * @param {string} text The string.
     * @return {string} The escaped string literal.
     */
    function escapeRegExp(text) {
        return text.replace(/[\-\[\]{}()*+?.,\\\^$|#]/g, '\\$&');
    }

    /**
     * Escapes special characters in a string to be used inside a regular
     * expression as a string literal. Also ensures that HTML entities will
     * be matched the same as their literal friends.
     * @param {string} body The string.
     * @return {string} The escaped string.
     */
    function escapeCodeAsRegExpForMatchingInsideHTML(body) {
        return escapeRegExp(body).replace('<', '(?:<|&lt;)').replace('>', '(?:>|&gt;)').replace('&', '(?:&|&amp;)').replace('"', '(?:"|&quot;)').replace(/\s+/g, '\\s+');
    }

    // Contents of Exception in various browsers.
    //
    // SAFARI:
    // ex.message = Can't find variable: qq
    // ex.line = 59
    // ex.sourceId = 580238192
    // ex.sourceURL = http://...
    // ex.expressionBeginOffset = 96
    // ex.expressionCaretOffset = 98
    // ex.expressionEndOffset = 98
    // ex.name = ReferenceError
    //
    // FIREFOX:
    // ex.message = qq is not defined
    // ex.fileName = http://...
    // ex.lineNumber = 59
    // ex.columnNumber = 69
    // ex.stack = ...stack trace... (see the example below)
    // ex.name = ReferenceError
    //
    // CHROME:
    // ex.message = qq is not defined
    // ex.name = ReferenceError
    // ex.type = not_defined
    // ex.arguments = ['aa']
    // ex.stack = ...stack trace...
    //
    // INTERNET EXPLORER:
    // ex.message = ...
    // ex.name = ReferenceError
    //
    // OPERA:
    // ex.message = ...message... (see the example below)
    // ex.name = ReferenceError
    // ex.opera#sourceloc = 11  (pretty much useless, duplicates the info in ex.message)
    // ex.stacktrace = n/a; see 'opera:config#UserPrefs|Exceptions Have Stacktrace'

    /**
     * Computes stack trace information from the stack property.
     * Chrome and Gecko use this property.
     * @param {Error} ex
     * @return {?Object.<string, *>} Stack trace information.
     */
    function computeStackTraceFromStackProp(ex) {
        if (typeof ex.stack === 'undefined' || !ex.stack) return;

        var chrome = /^\s*at (.*?) ?\(((?:file|https?|blob|chrome-extension|native|eval|<anonymous>).*?)(?::(\d+))?(?::(\d+))?\)?\s*$/i,
            gecko = /^\s*(.*?)(?:\((.*?)\))?(?:^|@)((?:file|https?|blob|chrome|resource|\[native).*?)(?::(\d+))?(?::(\d+))?\s*$/i,
            winjs = /^\s*at (?:((?:\[object object\])?.+) )?\(?((?:file|ms-appx|https?|blob):.*?):(\d+)(?::(\d+))?\)?\s*$/i,
            lines = ex.stack.split('\n'),
            stack = [],
            parts,
            element,
            reference = /^(.*) is undefined$/.exec(ex.message);

        for (var i = 0, j = lines.length; i < j; ++i) {
            if ((parts = chrome.exec(lines[i]))) {
                var isNative = parts[2] && parts[2].indexOf('native') !== -1;
                element = {
                    'url': !isNative ? parts[2] : null,
                    'func': parts[1] || UNKNOWN_FUNCTION,
                    'args': isNative ? [parts[2]] : [],
                    'line': parts[3] ? +parts[3] : null,
                    'column': parts[4] ? +parts[4] : null
                };
            } else if ( parts = winjs.exec(lines[i]) ) {
                element = {
                    'url': parts[2],
                    'func': parts[1] || UNKNOWN_FUNCTION,
                    'args': [],
                    'line': +parts[3],
                    'column': parts[4] ? +parts[4] : null
                };
            } else if ((parts = gecko.exec(lines[i]))) {
                element = {
                    'url': parts[3],
                    'func': parts[1] || UNKNOWN_FUNCTION,
                    'args': parts[2] ? parts[2].split(',') : [],
                    'line': parts[4] ? +parts[4] : null,
                    'column': parts[5] ? +parts[5] : null
                };
            } else {
                continue;
            }

            if (!element.func && element.line) {
                element.func = UNKNOWN_FUNCTION;
            }

            stack.push(element);
        }

        if (!stack.length) {
            return null;
        }

        if (!stack[0].column && typeof ex.columnNumber !== 'undefined') {
            // FireFox uses this awesome columnNumber property for its top frame
            // Also note, Firefox's column number is 0-based and everything else expects 1-based,
            // so adding 1
            stack[0].column = ex.columnNumber + 1;
        }

        return {
            'name': ex.name,
            'message': ex.message,
            'url': getLocationHref(),
            'stack': stack
        };
    }

    /**
     * Adds information about the first frame to incomplete stack traces.
     * Safari and IE require this to get complete data on the first frame.
     * @param {Object.<string, *>} stackInfo Stack trace information from
     * one of the compute* methods.
     * @param {string} url The URL of the script that caused an error.
     * @param {(number|string)} lineNo The line number of the script that
     * caused an error.
     * @param {string=} message The error generated by the browser, which
     * hopefully contains the name of the object that caused the error.
     * @return {boolean} Whether or not the stack information was
     * augmented.
     */
    function augmentStackTraceWithInitialElement(stackInfo, url, lineNo, message) {
        var initial = {
            'url': url,
            'line': lineNo
        };

        if (initial.url && initial.line) {
            stackInfo.incomplete = false;

            if (!initial.func) {
                initial.func = UNKNOWN_FUNCTION;
            }

            if (stackInfo.stack.length > 0) {
                if (stackInfo.stack[0].url === initial.url) {
                    if (stackInfo.stack[0].line === initial.line) {
                        return false; // already in stack trace
                    } else if (!stackInfo.stack[0].line && stackInfo.stack[0].func === initial.func) {
                        stackInfo.stack[0].line = initial.line;
                        return false;
                    }
                }
            }

            stackInfo.stack.unshift(initial);
            stackInfo.partial = true;
            return true;
        } else {
            stackInfo.incomplete = true;
        }

        return false;
    }

    /**
     * Computes stack trace information by walking the arguments.caller
     * chain at the time the exception occurred. This will cause earlier
     * frames to be missed but is the only way to get any stack trace in
     * Safari and IE. The top frame is restored by
     * {@link augmentStackTraceWithInitialElement}.
     * @param {Error} ex
     * @return {?Object.<string, *>} Stack trace information.
     */
    function computeStackTraceByWalkingCallerChain(ex, depth) {
        var functionName = /function\s+([_$a-zA-Z\xA0-\uFFFF][_$a-zA-Z0-9\xA0-\uFFFF]*)?\s*\(/i,
            stack = [],
            funcs = {},
            recursion = false,
            parts,
            item,
            source;

        for (var curr = computeStackTraceByWalkingCallerChain.caller; curr && !recursion; curr = curr.caller) {
            if (curr === computeStackTrace || curr === TraceKit.report) {
                // console.log('skipping internal function');
                continue;
            }

            item = {
                'url': null,
                'func': UNKNOWN_FUNCTION,
                'line': null,
                'column': null
            };

            if (curr.name) {
                item.func = curr.name;
            } else if ((parts = functionName.exec(curr.toString()))) {
                item.func = parts[1];
            }

            if (typeof item.func === 'undefined') {
              try {
                item.func = parts.input.substring(0, parts.input.indexOf('{'));
              } catch (e) { }
            }

            if (funcs['' + curr]) {
                recursion = true;
            }else{
                funcs['' + curr] = true;
            }

            stack.push(item);
        }

        if (depth) {
            // console.log('depth is ' + depth);
            // console.log('stack is ' + stack.length);
            stack.splice(0, depth);
        }

        var result = {
            'name': ex.name,
            'message': ex.message,
            'url': getLocationHref(),
            'stack': stack
        };
        augmentStackTraceWithInitialElement(result, ex.sourceURL || ex.fileName, ex.line || ex.lineNumber, ex.message || ex.description);
        return result;
    }

    /**
     * Computes a stack trace for an exception.
     * @param {Error} ex
     * @param {(string|number)=} depth
     */
    function computeStackTrace(ex, depth) {
        var stack = null;
        depth = (depth == null ? 0 : +depth);

        try {
            stack = computeStackTraceFromStackProp(ex);
            if (stack) {
                return stack;
            }
        } catch (e) {
            if (TraceKit.debug) {
                throw e;
            }
        }

        try {
            stack = computeStackTraceByWalkingCallerChain(ex, depth + 1);
            if (stack) {
                return stack;
            }
        } catch (e) {
            if (TraceKit.debug) {
                throw e;
            }
        }
        return {
            'name': ex.name,
            'message': ex.message,
            'url': getLocationHref()
        };
    }

    computeStackTrace.augmentStackTraceWithInitialElement = augmentStackTraceWithInitialElement;
    computeStackTrace.computeStackTraceFromStackProp = computeStackTraceFromStackProp;

    return computeStackTrace;
}());

module.exports = TraceKit;

}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"5":5}],7:[function(_dereq_,module,exports){
'use strict';

/*
 json-stringify-safe
 Like JSON.stringify, but doesn't throw on circular references.

 Originally forked from https://github.com/isaacs/json-stringify-safe
 version 5.0.1 on 3/8/2017 and modified for IE8 compatibility.
 Tests for this are in test/vendor.

 ISC license: https://github.com/isaacs/json-stringify-safe/blob/master/LICENSE
*/

exports = module.exports = stringify
exports.getSerialize = serializer

function indexOf(haystack, needle) {
  for (var i = 0; i < haystack.length; ++i) {
    if (haystack[i] === needle) return i;
  }
  return -1;
}

function stringify(obj, replacer, spaces, cycleReplacer) {
  return JSON.stringify(obj, serializer(replacer, cycleReplacer), spaces)
}

function serializer(replacer, cycleReplacer) {
  var stack = [], keys = []

  if (cycleReplacer == null) cycleReplacer = function(key, value) {
    if (stack[0] === value) return '[Circular ~]'
    return '[Circular ~.' + keys.slice(0, indexOf(stack, value)).join('.') + ']'
  }

  return function(key, value) {
    if (stack.length > 0) {
      var thisPos = indexOf(stack, this);
      ~thisPos ? stack.splice(thisPos + 1) : stack.push(this)
      ~thisPos ? keys.splice(thisPos, Infinity, key) : keys.push(key)
      if (~indexOf(stack, value)) value = cycleReplacer.call(this, key, value)
    }
    else stack.push(value)

    return replacer == null ? value : replacer.call(this, key, value)
  }
}

},{}]},{},[4])(4)
});