在 HEROKU 上创建 API.让您的所有 Oauth 和对 firebase 的每次调用都通过 API.此 API 只会在中国和 GoogleServices (Firebase) 之间桥接所有信息，因为强大的防火墙会阻止它们.

Create an API on HEROKU. Make all your Oauth and every call made for firebase go through the API. This API will only bridge all information between CHINA and GoogleServices (Firebase) since the great firewall blocks them.