when a HTTP header overflow error occurs, instead of a generic 400 response, return 431 Request Header Fields Too Large
Instead of returning a generic 400 response when the max header size is reached, return a 431 Request Header Fields Too Large.
Fixes: https://github.com/nodejs/node/issues/25528 Refs: https://tools.ietf.org/html/rfc6585#section-5
Checklist
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make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines