Corentin Lebigot focused on enhancing HTTP/2 reliability in the apache/trafficserver repository by addressing a critical bug related to Content-Length header validation. Using C++ and network programming expertise, Corentin corrected the handling of HEAD and 304 responses with non-zero Content-Length headers, ensuring compliance with RFC 7540 and preventing erroneous 502 errors. This work improved the stability of HTTP/2 flows, particularly in edge and cache scenarios, and reduced customer-facing errors. By refining the validation logic and aligning non-GET response handling with protocol expectations, Corentin strengthened the maintainability of HTTP/2 header processing and mitigated the risk of similar regressions.