Error 400 when logging in to google/gmail

Hello,
I’m wondering if anyone here experiencing this can run this test to see if it resolves the issue:

Another users appears to have resolved this by disabling Shields for the 400 error page — can anyone here encountering this still try logging into gmail again, then disabling Shields once they land on the 400 page?

I was running the same versions, but could not duplicate and my win10 laptop just updated to v 1.37.113. Still cant duplicate. Hopefully the post by mattches helps you.

Experiencing error in a profile. This does work and I can log in, but can’t turn shields back on or will give me the error again. Also, once disable shields in the google service, can’t delete the site from “always use cookies” in brave://settings/cookies even if shields is turned back on at the login screen.

I got around this by opening two windows and turning shields off in one, then logging out of account in the other and then I could delete the site from “always use cookies”. This worked with account.google.com and mail.google.com but the two below persist and I can’t figure out how to delete them!

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@Chocoholic,
Thanks for the update. I’ve informed the webcompat team about this and we’re looking into solutions presently.

I just experience the same issue while trying to access my Gmail in Brave, continually hitting that “400” error. After some digging, here’s what works for me:
Go to Gmail login page. In the upper right, click the Brave Shields icon and click the Shields Down For This Site slider.
Then Gmail reloaded, and everything worked find.

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