Fix forcing of web-socket-js even when native available.

include/web-socket-js/web_socket.js

@@ -5,7 +5,7 @@
 
 (function() {
   
-  if (window.WebSocket) return;
+  if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) return;
 
   var console = window.console;
   if (!console || !console.log || !console.error) {

include/websock.js

@@ -20,6 +20,11 @@
 
 // Load Flash WebSocket emulator if needed
 
+// To force WebSocket emulator even when native WebSocket available
+window.WEB_SOCKET_FORCE_FLASH = true;
+// To enable WebSocket emulator debug:
+window.WEB_SOCKET_DEBUG=1;
+
 if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
     Websock_native = true;
 } else if (window.MozWebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
@@ -28,9 +33,6 @@ if (window.WebSocket && !window.WEB_SOCKET_FORCE_FLASH) {
 } else {
     /* no builtin WebSocket so load web_socket.js */
 
-    // To enable debug:
-    // window.WEB_SOCKET_DEBUG=1;
-
     Websock_native = false;
     (function () {
         function get_INCLUDE_URI() {
@@ -280,6 +282,8 @@ function open(uri) {
         Util.Debug(">> WebSock.onopen");
         if (websocket.protocol) {
             Util.Info("Server chose sub-protocol: " + websocket.protocol);
+        } else {
+            Util.Error("Server select no sub-protocol!: " + websocket.protocol);
         }
         eventHandlers.open();
         Util.Debug("<< WebSock.onopen");