Re: [whatwg/fetch] Define parsing for X-Content-Type-Options in detail (#818)

annevk commented on this pull request.



> +steps:
+
+<ol>
+ <li><p>Let <var>value</var> be the result of <a for="header list">getting</a>
+ `<a http-header><code>X-Content-Type-Options</code></a>` from <var>list</var>.
+
+ <li><p>If <var>value</var> is null, then return false.
+
+ <li><p>Let <var>stringValue</var> be the <a>isomorphic decode</a> of <var>value</var>.
+
+ <li>
+  <p>Let <var>tokens</var> be the result of
+  <a lt="split on commas">spliting <var>stringValue</var> on commas</a>.
+
+  <p class="note">This intentionally strips U+000C FORM FEED, despite 0x0C not being being a
+  <a>HTTP whitespace byte</a>.

Implementations are a little divergent here. I guess we can try to push for not stripping U+000C here and elsewhere.

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