[HTTP Cache] Validation model: Fix header name #3596
Merged
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In the cache validation model, the response sends an
ETag
header, but the following requests send anIf-None-Match
header. So theIf-None-Match
header from the request is compared to theETag
from the previous response. SeeSymfony\Component\HttpFoundation\Request::getETags()
which is used bySymfony\Component\HttpFoundation\Response::isNotModified()
.