Getting 'Error 431: Request Header Fields Too Large' – How Do I Fix This? or What Causes Error 431 an

"Getting 'Error 431: Request Header Fields Too Large' – How Do I Fix This?"

Ugh, just ran into error 431 for the first time and it's driving me nuts. Like, why are my headers suddenly "too large"? I didn’t even change anything!

Anyone else dealt with this before? I’m on Chrome, btw. Tried clearing cookies/cache, but no luck.

Is this a server-side thing or am I missing something obvious? Also, does it happen more with certain sites?

Help a frustrated internet traveler out!

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*or*

"What Causes Error 431 and How Can I Resolve It?"

So error 431 pops up and I’m like… "cool, but what now?" Apparently it’s about headers being too big, but how does that even happen?

Is it my browser? The site? Both?

Tried shortening URLs, disabling extensions—nada. Some say it’s a server config issue, but idk.

If you’ve fixed this before, spill the tea. I just wanna browse in peace. 😩

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*or*

"Anyone Else Running Into Error 431? Need Help Troubleshooting!"

error 431 is my new nemesis. Seriously, who decided headers could be "too large"?

Happens randomly on some sites, not others. Firefox user here, btw.

Already tried:
- Restarting browser
- Dumping cookies
- Incognito mode

Still no fix. Anyone got a magic trick or is this just life now?

Pls halp. 🙏