Tweak JS error tracking

assets/javascripts/app/app.coffee

@@ -54,7 +54,7 @@
           release: @config.release
           whitelistUrls: [/devdocs/]
           includePaths: [/devdocs/]
-          ignoreErrors: [/NPObject/, /NS_ERROR/, /^null$/, /Electron\.app/]
+          ignoreErrors: [/NPObject/, /NS_ERROR/, /^null$/, /EvalError/]
           tags:
             mode: if @isSingleDoc() then 'single' else 'full'
             iframe: (window.top isnt window).toString()
@@ -72,6 +72,7 @@
               $.extend(data.user ||= {}, app.settings.dump())
               data.user.docs = data.user.docs.split('/') if data.user.docs
               data.user.lastIDBTransaction = app.lastIDBTransaction if app.lastIDBTransaction
+              data.tags.scriptCount = document.scripts.length
             data
         .install()
       @previousErrorHandler = onerror