Sentry.js configuration for logging JavaScript exceptions to Sentry (https://sentry.io/). Without the added ignore options, you'll quickly find yourself swamped with unactionable exceptions due to shoddy browser plugins and 3rd party script errors.

sentry-config.html

<!-- Sentry.js Config -->
<script src="https://js.sentry-cdn.com/{{ENV['SENTRY_PUBLIC_DSN']}}.min.js" type="text/javascript"></script>
<script type="text/javascript">
  // custom functions to handle errors in JS.
  function handleRouteError(err) {
    Sentry.captureException(err);
  }

  function errorHandler(error, data, level) {
    level = level || 'info';
    data  = data  || {};
    Sentry.withScope(function(scope) {
      scope.setExtra('details', data);
      scope.setLevel(level);
      Sentry.captureMessage(error);
    });
  }
  // Ignore list based off: https://gist.github.com/1878283 + https://gist.github.com/impressiver/5092952
  var sentryOptions = {
    environment: "production",
    tracesSampleRate: 0.25,
    // Will cause a deprecation warning, but the demise of `ignoreErrors` is still under discussion.
    // See: https://github.com/getsentry/raven-js/issues/73
    ignoreErrors: [
      // Random plugins/extensions
      'top.GLOBALS',
      // See: http://blog.errorception.com/2012/03/tale-of-unfindable-js-error.html
      'originalCreateNotification',
      'canvas.contentDocument',
      'MyApp_RemoveAllHighlights',
      'http://tt.epicplay.com',
      'Can\'t find variable: ZiteReader',
      'jigsaw is not defined',
      'ComboSearch is not defined',
      'http://loading.retry.widdit.com/',
      'atomicFindClose',
      // Facebook borked
      'fb_xd_fragment',
      // ISP "optimizing" proxy - `Cache-Control: no-transform` seems to reduce this. (thanks @acdha)
      // See http://stackoverflow.com/questions/4113268/how-to-stop-javascript-injection-from-vodafone-proxy
      'bmi_SafeAddOnload',
      'EBCallBackMessageReceived',
      // See http://toolbar.conduit.com/Developer/HtmlAndGadget/Methods/JSInjection.aspx
      'conduitPage',
      // Generic error code from errors outside the security sandbox
      // You can delete this if using raven.js > 1.0, which ignores these automatically.
      'Script error.',
      // Avast extension error
      "_avast_submit"
    ],
    denyUrls: [
      // Google Adsense
      /pagead\/js/i,
      // Facebook flakiness
      /graph\.facebook\.com/i,
      // Facebook blocked
      /connect\.facebook\.net\/en_US\/all\.js/i,
      // Woopra flakiness
      /eatdifferent\.com\.woopra-ns\.com/i,
      /static\.woopra\.com\/js\/woopra\.js/i,
      // Chrome extensions
      /extensions\//i,
      /^chrome:\/\//i,
      // Other plugins
      /127\.0\.0\.1:4001\/isrunning/i,  // Cacaoweb
      /webappstoolbarba\.texthelp\.com\//i,
      /metrics\.itunes\.apple\.com\.edgesuite\.net\//i
    ]
  };
  // Configure Sentry and install default handler to capture uncaught exceptions
  Sentry.onLoad(function() {
    Sentry.init(sentryOptions);
  });
</script>

thanks!

Nice! Thanks! 👍