Javascript 悬挂应用程序与覆盖问题

我已经有一个星期没有遇到使用Hangouts API的bug了。我试图在用户单击按钮时使用创建覆盖。我面临的问题是，当用户首次加载应用程序时，覆盖有时会起作用，如果用户重新加载页面，则覆盖在正确加载覆盖之前似乎不起作用

检查Google Chrome控制台显示：

Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
Unknown RPC service: hangout_effect_load_resource cb=gapi.loaded_0:98
everything ready mediaStarter.js:396

此外，以下例子：https://developers.google.com/+/hangouts/示例应用程序同样的事情发生了有什么帮助吗

我的社交应用程序：https://plus.google.com/hangouts/_?gid=228838128711