Headers are too large
Section: Codes 422-451
HTTP 431 Request Header Fields Too Large
text
text
curl -i -H 'Cookie: huge=...' https://example.comExplanation
Often caused by oversized cookies or custom headers.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Codes 422-451