Fixes to webgl/opengl es 3.0 for compatibility with webgl2.0, still does not work though

platform/javascript/os_javascript.cpp

@@ -282,6 +282,8 @@ void OS_JavaScript::initialize(const VideoMode& p_desired,int p_video_driver,int
 	javascript_eval = memnew(JavaScript);
 	GlobalConfig::get_singleton()->add_singleton(GlobalConfig::Singleton("JavaScript", javascript_eval));
 #endif
+
+	visual_server->init();
 }
 
 void OS_JavaScript::set_main_loop( MainLoop * p_main_loop ) {