Cannot sign in to github and got an undefined error

[sheey11]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.62.2
• OS Version: Windows 10 20H2

Steps to Reproduce:

1. Just click Sign in with Github to use Copilot

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Details:

1. Click the Sign in and vscode opened a web page, which is correct.
   
2. In the opened page, click Continue and the vscode-auth.github.com responds with empty.
   
3. After a while, vscode report Sign in failed: undefined.
   

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log of Github Authentication ext:

[Info  - 10:28:14.785] Reading sessions from keychain...
[Info  - 10:28:14.805] Getting sessions for all scopes...
[Info  - 10:28:14.805] Getting sessions for all scopes...
[Trace  - 10:28:14.805] Token acquired from secret storage.
[Info  - 10:28:14.805] Got stored sessions!
[Trace  - 10:28:14.805] Read the following session from the keychain with the following scopes: read:user,user:email,repo
[Info  - 10:28:14.810] Got 1 verified sessions.
[Info  - 10:28:14.810] Got 1 sessions for all scopes...
[Info  - 10:28:14.810] Got 1 sessions for all scopes...
[Info  - 10:28:14.996] Getting sessions for read:user,user:email,repo...
[Info  - 10:28:14.998] Got 1 sessions for read:user,repo,user:email...
[Info  - 10:28:15.110] Getting sessions for read:user,user:email,repo...
[Info  - 10:28:15.110] Got 1 sessions for read:user,repo,user:email...
[Info  - 10:28:16.833] Getting sessions for read:user,user:email...
[Info  - 10:28:16.834] Got 0 sessions for read:user,user:email...
[Info  - 10:28:20.272] Getting sessions for read:user...
[Info  - 10:28:20.272] Got 0 sessions for read:user...
[Info  - 10:28:33.738] Getting sessions for read:user...
[Info  - 10:28:33.738] Got 0 sessions for read:user...
[Info  - 10:28:34.777] Logging in for the following scopes: read:user
[Info  - 10:59:32.427] Getting sessions for all scopes...
[Info  - 10:59:32.427] Got 1 sessions for all scopes...
[Info  - 10:59:33.826] Logging in for the following scopes: read:user
[Info  - 11:00:07.883] Getting sessions for all scopes...
[Info  - 11:00:07.883] Got 1 sessions for all scopes...
[Info  - 11:00:08.794] Logging in for the following scopes: read:user
[Info  - 11:00:20.784] Getting sessions for all scopes...
[Info  - 11:00:20.784] Got 1 sessions for all scopes...
[Error  - 11:00:33.849] undefined

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log of Github Copilot ext:

(empty)

[rgoubet]

Possibly related, it is impossible to push/pull to/from a private repo since 1.62.2 (authentication failed). See here for other reports.

[TylerLeonhardt]

@rgoubet git authorization doesn't use this flow so that's unrelated.

[rgoubet]

OK. Submitted as a separate issue.

[TylerLeonhardt]

@sheey11 were there any additional webpages displayed between the two you have shown above? Can you share the full url of the error page?

[sheey11]

There might be pages but seems browser not shown, I found something might useful.

I tried this using another browser(Edge InPrivate, without any extension) that is not signed into github, after clicking Continue, it redirects me to github.com to let me sign in. and after that, it redirects me to the following url:

https://vscode-auth.github.com/?browser_session_id=random_hash_with_length_64&code=random_hash_with_length_20&state=some_random_string%2FeyJhdXRoU2VydmVyIjoiaHR0cHM6Ly9naXRodWIuY29tIiwiY2FsbGJhY2tVcmkiOiJ2c2NvZGU6Ly92c2NvZGUuZ2l0aHViLWF1dGhlbnRpY2F0aW9uL2RpZC1hdXRoZW50aWNhdGU_d2luZG93aWQ9MSIsInJlc3BvbnNlVHlwZSI6ImNvZGUiLCJzdGF0ZSI6InNvbWUtdXVpZCIsImlkIjoibXktaXAtZ29lcy1oZXJlIn0

this probably is the real request which got the ERR_EMPTY_RESPONSE

[sheey11]

I finally managed to sovle this!

the reason I got error is I visit github.com through a http proxy.
to solve this, just set a rule letting all *.github.com requests using proxy except vscode-auth.github.com.