/home sign in doesn't work well
gitter.im/home sign in doesn't work well.
If you aren't signed into GitHub, and try to use the "Sign in" button flow, it will throw the following error
Refused to display 'https://github.com/login?client_id=xxx&return_to=%2Flogin%…26state%3Dxxx' in a frame because an ancestor violates the following Content Security Policy directive: "frame-ancestors 'none'".
If you are already logged in on GitHub, the login action will work but the left menu isn't loaded,