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Title: gh-54930: Send a status line in error responses to malformed request lines by serhiy-storchaka · Pull Request #152980 · python/cpython · GitHub

Open Graph Title: gh-54930: Send a status line in error responses to malformed request lines by serhiy-storchaka · Pull Request #152980 · python/cpython

X Title: gh-54930: Send a status line in error responses to malformed request lines by serhiy-storchaka · Pull Request #152980 · python/cpython

Description: Previously, if the request line could not be parsed (malformed or unsupported version, bad syntax, or a non-GET two-word request), the error response was sent in the bare HTTP/0.9 style, without a status line and headers, because the request version defaulted to "HTTP/0.9". The client received raw HTML and could not see the 400 or 505 status. Now only a valid HTTP/0.9 request (a two-word GET request line) receives an HTTP/0.9 style response. The other defect discussed in the issue (deadlock on a one-line HTTP/0.9 request) was fixed in gh-70765. The test suite previously worked around the present defect by setting default_request_version = 'HTTP/1.1' in its test handlers. 🤖 Generated with Claude Code Issue: gh-54930

Open Graph Description: Previously, if the request line could not be parsed (malformed or unsupported version, bad syntax, or a non-GET two-word request), the error response was sent in the bare HTTP/0.9 style, without a ...

X Description: Previously, if the request line could not be parsed (malformed or unsupported version, bad syntax, or a non-GET two-word request), the error response was sent in the bare HTTP/0.9 style, without a ...

Opengraph URL: https://github.com/python/cpython/pull/152980

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