Chrome: 400 Bad Request Request

[branfont]

I'm getting the following error in Chrome on Android, it just started happening:

 

400 Bad Request
Request Header Or Cookie Too Large

[Circaflex]

if you open a private browser, does it still happen?

[branfont]

On 09/07/2026 at 11:45, Circaflex said:

if you open a private browser, does it still happen?

It worked in Chrome's Incognito mode, works fine in regular Firefox, which is how I made this thread.

[_neutrino Veteran]

do you have any weird adblocking or content filtering addons installed in your browser?

[branfont]

On 09/07/2026 at 12:11, _neutrino said:

do you have any weird adblocking or content filtering addons installed in your browser?

I'm on my Android phone, Chrome is everything default. 

[Steffan]

Clear cache and cookies?

[_neutrino Veteran]

On 09/07/2026 at 14:48, Steffan said:

Clear cache and cookies?

yeah i would go with this and see if it resolves the issue.

[branfont]

It seems to have resolved itself. (Chrome post)

 

EDIT: I spoke too soon! (Firefox post)

 

 

[xrobwx71]

Do you sync your Chrome across platforms? If so, turn off sync. log out of all instances. Clear cache. Log back in and turn sync back on.

[branfont]

No, Chrome is exclusive to Android for me, while Firefox is on my laptop at home.

 

Again, it seems to have resolved itself again.

[Nick H. Supervisor]

Are you using a VPN (in-built or 3rd party?)

Which networks are you connected to when it doesn't work?

When you get a 400 error, if you use a different browser does it work?