Can't open Gmail

I had installed brave last week for it’s combination of the best between the two worlds, privacy and features. After transferring the data from my previous browser, I tried to open gmail. After I had given the necessary credentials, I was met with a 400 error. This is the message displayed :
" 400. That’s an error
The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

I cannot open it also in a private window.

My brave version is 1.19.92.

As any other normal human being, I searched the issue and I am disappointed to find that this issue has been not resolved for over 2 years. The earliest I found regarding this issue is from @TheSoulRider (Whose thread got closed without a solution and the user moving to another browser). I can readily side with @TheSoulRider and say that this issue will not be resolved in the foreseeable future unless this issue is taken up by the higher authorities for debugging.

Did you read this?

Wow. 2 years? I didn’t recall it had been that long ago. And it’s still going on. And since that time Brave has also, more recently, begun browser landing page advertising on my smartphone. Brave is now surrendering to the common problem that if users don’t like what they’re doing with its browser, Brave won’t care. Because Brave makes lots more money from invasive advertising rather than selling licensing for the browser to end-users. They’ll feel unaffected if I stop using Brave, although they have begun their creeping mobile advertising to see what they can get away with. I’d rather pay them a one-time fee to license their browser on my machines.

@TheSoulRider,
Brave ads (and Rewards in general) are completely optional and can be disabled at any time.
Further, a quick once-over on how Brave Ads work will reveal that they are implemented with the specific intent of not being “creepy”. Your information is not stored or sold to third parties and you get paid for simply having them enabled.

While obviously this appears to be an issue for some users, its important to note that we have millions of users who are and have been able to user Gmail in Brave without any issues. To say that “it’s still going on” seems to imply some widespread epidemic of an issue which just simply isn’t true.

What is going on and is true is that I’m unwilling to serve as Brave’s support staff in de-bugging its product. I’m not an owner, and I’m not staff, and don’t want to be.

Hello, this problem occurs with few users and it is always best to report as @CupcakeSyndrome did. Hope @rotblut’s answers helped you.

However, I want to clarify that I do not like what @thesoulrider said. The part of “I’m unwilling to serve as Brave’s support staff in de-bugging its product. I’m not an owner, and I’m not staff, and don’t want to be.” is completely irrelevant.

You also say something like this: “Brave is now surrendering to the common problem that if users don’t like what they’re doing with its browser, Brave won’t care”.
If Brave didn’t care about its users, they wouldn’t have created this help and support forum. Also regarding “Because Brave makes lots more money from invasive advertising rather than selling licensing for the browser to end-users.” Mattches specified it clearly in his answer.

I don’t plan on turning this into a fight, nor do I plan to respond. I will focus fully on the topic.

Hey @Rotblut, yes I did read it as my problem was heavily citied from @TheSoulRider’s and no, it didn’t solve neither my problem nor his. Removing cookies seems to be a generic answer that everyone seems to be giving to this particular problem. I didn’t mention it in my post as it was already too long to read. Also, if you continue reading the thread, you will find that @TheSoulRider states and I quote “Problem remains unsolved. Switching away from Brave to another browser like Firefox. Bye.”