Add Content-Length header to preflight response#11682
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traefiker merged 2 commits intotraefik:v2.11from Apr 16, 2025
Merged
Add Content-Length header to preflight response#11682traefiker merged 2 commits intotraefik:v2.11from
traefiker merged 2 commits intotraefik:v2.11from
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What does this PR do?
This PR ensures that a
Content-Length: 0header is included in the response when a preflightOPTIONSrequest is handled by theheadersmiddleware.Motivation
This change addresses an issue that occurs when the
buffermiddleware is used before in the middleware chain. Without an explicitContent-Length, the response may be misinterpreted as having a body, leading to unexpected error.More