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Clarify headers and response code for external content #351

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merged 2 commits into from Apr 11, 2018
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Clarify headers and response code for external content #351

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fd53ff2
Clarify headers and response code for external content
Apr 4, 2018
ce910b3
Address code review comments
Apr 8, 2018
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Expand Up @@ -640,6 +640,18 @@ <h3>External Binary Content</h3>
the request entity MUST reject request if it cannot guarantee all of the response headers required by the
<a>LDP-NR</a> interaction model in this specification.
</p>
<blockquote id="external-content-response-headers-example" class="informative">
Non-normative note: Example headers for a successful response to a <code>HEAD</code> request on external
content with <code>handling</code> of <code>redirect</code> (Below, <code>Link</code> headers are written on
separate lines for readability, but can also be listed as comma-separated values in a single header per
[[RFC8288]] <a href="https://tools.ietf.org/html/rfc8288#section-3">section 3</a>):
<pre>
Link: &lt;http://www.w3.org/ns/ldp#Resource&gt;;rel="type"
Link: &lt;http://www.w3.org/ns/ldp#NonRDFSource&gt;;rel="type"
Link: &lt;http://host/fcrepo/image/fcr:metadata&gt;; rel="describedby"
Content-Type: application/pdf
Location: http://example.org/document</pre>
</blockquote>
<section id='external-content-options'>
<h4>Advertising External Content Support</h4>
<p>
Expand Down Expand Up @@ -671,6 +683,11 @@ <h4>Redirected and Proxied External Content</h4>
<code>GET</code> and <code>HEAD</code> requests to any external <a>LDP-NR</a> MUST correctly
respond to the <code>Want-Digest</code> header defined in [[!RFC3230]].
</p>
<p id='external-content-redirect-status'>
A successful response to a <code>GET</code> and <code>HEAD</code> request for external content with
<code>handling</code> of <code>redirect</code> MUST have status code of either 302 (Found) or
307 (Temporary Redirect).
</p>
</section>
</section>
</section>
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