Fix Lint: allow lowercase and special chars in REQUEST_METHOD#726
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kimjune01 wants to merge 1 commit into
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Fix Lint: allow lowercase and special chars in REQUEST_METHOD#726kimjune01 wants to merge 1 commit into
kimjune01 wants to merge 1 commit into
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Middleware::Lint was incorrectly rejecting valid HTTP method tokens that contained lowercase letters or special characters. RFC 7231 section 4.1 defines method tokens as case-sensitive sequences of tchar (RFC 7230 section 3.2.6), which includes A-Z, a-z, 0-9, and !#$%&'*+-.^_`|~. This fix updates the REQUEST_METHOD validation regex to accept all valid tchar sequences, allowing methods like "get", "GeT", and "my-custom-method". Fixes plack#588
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Summary
REQUEST_METHODvalidation regex from/^[A-Z]+$/to RFC 9110 tchar to accept lowercase methods, digits, and other valid token charactersFixes #588
Test plan
prove -Ilib t/Plack-Middleware/lint_env.tpasses (12/12 tests)get), mixed case (myMethod), hyphenated (X-Custom), and empty string (rejected)