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Align prose about content in HEAD requests with description of GET (fixes #826) #835

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Apr 7, 2021
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Align prose about content in HEAD requests with description of GET (fixes #826) #835

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14 changes: 9 additions & 5 deletions draft-ietf-httpbis-semantics-latest.xml
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Expand Up @@ -4634,9 +4634,12 @@ Content-Encoding: gzip
sake of efficiency.
</t>
<t>
A content within a HEAD request message has no defined semantics;
sending content in a HEAD request might cause some existing
implementations to reject the request.
A client &SHOULD-NOT; generate content in a HEAD
request. Content received in a HEAD request has no defined semantics,
cannot alter the meaning or target of the request, and might lead some
implementations to reject the request and close the connection because of
its potential as a request smuggling attack
(<xref target="request.smuggling"/>).
</t>
<t>
The response to a HEAD request is cacheable; a cache &MAY; use it to
Expand Down Expand Up @@ -13050,8 +13053,8 @@ Content-Type: text/plain
(<xref target="idempotent.methods"/>)
</t>
<t>
Clarified that request bodies on GET and DELETE are not interoperable.
(<xref target="GET"/>, <xref target="DELETE"/>)
Clarified that request bodies on GET, HEAD, and DELETE are not interoperable.
(<xref target="GET"/>, <xref target="HEAD"/>, <xref target="DELETE"/>)
</t>
<t>
Allowed use of the <x:ref>Content-Range</x:ref> header field
Expand Down Expand Up @@ -13524,6 +13527,7 @@ Content-Type: text/plain

<section title="Since draft-ietf-httpbis-semantics-15" anchor="changes.since.15">
<ul x:when-empty="None yet.">
<li>In <xref target="HEAD"/>, align prose about content in HEAD requests with description of GET (<eref target="https://github.com/httpwg/http-core/issues/826"/>)</li>
</ul>
</section>
</section>
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