Allow define queue to be consumed by loader before reacting to incoming worker messages

src/vs/base/worker/workerMain.ts

@@ -18,14 +18,16 @@
 
 	let loadCode = function(moduleId) {
 		require([moduleId], function(ws) {
-			let messageHandler = ws.create((msg:any) => {
-				(<any>self).postMessage(msg);
-			}, null);
-
-			self.onmessage = (e) => messageHandler.onmessage(e.data);
-			while(beforeReadyMessages.length > 0) {
-				self.onmessage(beforeReadyMessages.shift());
-			}
+			setTimeout(function() {
+				let messageHandler = ws.create((msg:any) => {
+					(<any>self).postMessage(msg);
+				}, null);
+
+				self.onmessage = (e) => messageHandler.onmessage(e.data);
+				while(beforeReadyMessages.length > 0) {
+					self.onmessage(beforeReadyMessages.shift());
+				}
+			}, 0);
 		});
 	};