54 lines
3.6 KiB
HTML
54 lines
3.6 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta content="width=device-width, initial-scale=1" charset="utf-8" />
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<link rel="icon" href="/assets/askiiart.gif" type="image/icon">
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<title>300 Addendum</title>
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<link href="/style.css" type="text/css" rel="stylesheet" />
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<link href="/prism.css" rel="stylesheet" />
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</head>
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<body class="line-numbers">
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<h1 id="addendum">300 Addendum</h1>
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<p>Still not the movie. Still a nerd.</p>
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<hr />
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<p>So let's figure out how to add the <code>Link</code> header
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for 300 Multiple Choices. As a reminder, <a
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href="https://httpwg.org/specs/rfc9110.html#status.300">here's
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the spec</a>:</p>
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<blockquote>
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<p>It is possible to communicate the list using a set of Link
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header fields <em><a
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href="https://httpwg.org/specs/rfc9110.html#RFC8288">RFC5988</a></em>,
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each with a relationship of "alternate", though deployment is a
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chicken-and-egg problem.</p>
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</blockquote>
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<p>So based off some examples for the <code>Link</code> header
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in general on <a
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href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Link">Mozilla's
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docs</a>, and for 300 <code>Link</code> headers specifically <a
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href="https://http.dev/300">on http.dev</a>, this is how you
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make the <code>Link</code> headers for a 300:</p>
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<div class="sourceCode" id="cb1"><pre
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class="language-txt"><code class="language-default"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a>Link: </relative/link/like/this>; rel="alternate"</span>
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<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a>Link: <https://site-one.net/blah/blah/blah>; rel="alternate"</span></code></pre></div>
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<p>Unfortunately, there doesn't seem to be an option for
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specifying a preferred choice in the <code>Link</code> header.
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So I'll just set mine to these:</p>
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<div class="sourceCode" id="cb2"><pre
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class="language-txt"><code class="language-default"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a>Link: <https://git.askiiart.net/askiiart/askiiart-net>; rel="alternate"</span>
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<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a>Link: <https://github.com/askiiart/askiiart.github.io>; rel="alternate"</span></code></pre></div>
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<p>And so here's the new nginx config:</p>
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<pre class="language-nginx"><code> location /.git {
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add_header Location "https://git.askiiart.net/askiiart/askiiart-net";
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add_header Link '<https://git.askiiart.net/askiiart/askiiart-net>; rel="alternate"; "';
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add_header Link '<https://github.com/askiiart/askiiart.github.io>; rel="alternate"; "';
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return 300 '<!DOCTYPE html><html lang="en"><head><meta charset="utf-8"></head><body><a href="https://git.askiiart.net/askiiart/askiiart-net">Self-hosted</a><br><a href="https://github.com/askiiart/askiiart-net">GitHub</a></body></html>';
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}</code></pre>
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<p><a href="/blog/300.html">Main post</a></p>
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<script src="/prism.js"></script>
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</body>
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<footer>
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<p><a href="https://git.askiiart.net/askiiart/askiiart-net">code</a> (<a href="https://github.com/askiiart/askiiart.github.io">mirror</a>) <a href="/feed.xml">rss</a> <a href="/pubkey.asc">pubkey</a></p>
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</footer>
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</html>
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