add sentry exclusion list and set logging sample rate to 1%

services/web/app/views/layout.jade

@@ -56,6 +56,51 @@ html(itemscope, itemtype='http://schema.org/Product')
 			script(type="text/javascript").
 				if (typeof(Raven) != "undefined" && Raven.config) {
 					Raven.config("#{sentryPublicDSN}", {
+					// Ignore list based off: https://gist.github.com/1878283
+					ignoreErrors: [
+						'DealPly',
+						// 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'
+					],
+					ignoreUrls: [
+						// 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
+					],
+					shouldSendCallback: function(data) {
+						// only send a percentage of errors
+						var sampleRate = 0.01;
+						return (Math.random() <= sampleRate);
+					}
 					// we highly recommend restricting exceptions to a domain in order to filter out clutter
 					// whitelistUrls: ['example.com/scripts/']
 					}).install();