Re: [whatwg/fetch] Define the response Content-Type header parser (#831)

annevk commented on this pull request.



> + <li><p>Let <var>values</var> be the result of
+ <a for="header list">getting, decoding, and splitting</a> `<code>Content-Type</code>` from
+ <var>headers</var>.
+
+ <li><p>If <var>values</var> is null, then return failure.
+
+ <li>
+  <p><a for=list>For each</a> <var>value</var> of <var>values</var>:
+
+  <ol>
+   <li><p>Set <var>mimeType</var> to the result of <a lt="parse a MIME type">parsing</a>
+   <var>value</var>.
+
+   <li>
+    <p>If <var>mimeType</var> is not failure and <var>mimeType</var>'s
+    <a for="MIME type">essence</a> is not "<code>*/*</code>" or <var>essence</var>, then:

Still need to test the empty string here. It'd also be good if this were consistent with MIME sniffing which does consider application/unknown and co...

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