[Bug Report] 用了gitee,github都不行，没什么用。

[cokucoku]

Environment

• Vssue Version: [e.g. v0.8.2]
• Platform: [e.g. GitHub, GitLab, Bitbucket, GitLab CE 11.7.0]
• OS: [e.g. Windows 10, iOS, Android]
• Browser: [e.g. chrome 74]

Describe the bug

Steps To Reproduce

Screenshots

Expected behavior

Additional context

[Gitsifu]

https://cors-anywhere.azm.workers.dev/https://github.com/login/oauth/access_token 接口在中国大陆已经被墙了，所以导致无法登录