Further workaround to try to push node.js event loop forward (#1511)

FREEBIE

preload.js

@@ -39,5 +39,10 @@
   window.nodeXMLHttpRequest = require("./js/XMLHttpRequest").XMLHttpRequest;
   window.nodeWebSocket = require("websocket").w3cwebsocket;
 
+  // Linux seems to periodically let the event loop stop, so this is a global workaround
+  setInterval(function() {
+    setImmediate(function() {});
+  }, 1000);
+
   window.EmojiConvertor = require('emoji-js');
 })();