Update console polyfill. Fix #731

app/js/lib/polyfill.js

@@ -1,19 +1,23 @@
 // Console-polyfill. MIT license.
 // https://github.com/paulmillr/console-polyfill
 // Make it safe to do console.log() always.
-(function (con) {
+(function(global) {
   'use strict';
+  global.console = global.console || {};
+  var con = global.console;
   var prop, method;
   var empty = {};
   var dummy = function() {};
   var properties = 'memory'.split(',');
-  var methods = ('assert,count,debug,dir,dirxml,error,exception,group,' +
-     'groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,' +
-     'time,timeEnd,trace,warn').split(',');
-  while (prop = properties.pop()) con[prop] = con[prop] || empty;
-  while (method = methods.pop()) con[method] = con[method] || dummy;
-})(this.console = this.console || {});
-
+  var methods = ('assert,clear,count,debug,dir,dirxml,error,exception,group,' +
+     'groupCollapsed,groupEnd,info,log,markTimeline,profile,profiles,profileEnd,' +
+     'show,table,time,timeEnd,timeline,timelineEnd,timeStamp,trace,warn').split(',');
+  while (prop = properties.pop()) if (!con[prop]) con[prop] = empty;
+  while (method = methods.pop()) if (!con[method]) con[method] = dummy;
+})(typeof window === 'undefined' ? this : window);
+// Using `this` for web workers while maintaining compatibility with browser
+// targeted script loaders such as Browserify or Webpack where the only way to
+// get to the global object is via `window`.
 
 /* Array.indexOf polyfill */
 if (!Array.prototype.indexOf) {