Fixed serialization of URL and extraction of structured field header values

Author: pmeenan

fetch.bs

@@ -6579,8 +6579,9 @@ run these steps:
    <li><p>If <var>compressionDictionaryCache</var> is null, then return <var>response</var>.
 
    <li><p>Let <var>pattern</var> be the result of
-   <a for=/>creating a URL pattern</a> from <var>dictionaryValue</var>["<code>match</code>"]
-   and <var>request</var>'s <a for=request>current URL</a>.
+   <a for=/>creating a URL pattern</a> given the bare item of <var>dictionaryValue</var>["<code>match</code>"],
+   the <a lt="URL serializer">serialization</a> of <var>request</var>'s <a for=request>current URL</a>,
+   and an empty map.
 
    <li><p>If <var>pattern</var> is failure or <var>pattern</var> <a for=/>has regexp groups</a>,
    then return <var>response</var>.
@@ -6655,9 +6656,13 @@ given a <a for=/>fetch params</a> <var>fetchParams</var>, an optional boolean
  <li><p>If <var>request</var>'s <a for=request>response tainting</a> is "<code>opaque</code>",
  then return a <a>network error</a>.
 
- <li><p>Let <var>availableDictionaryHash</var> be the result of
+ <li><p>Let <var>availableDictionaryItem</var> be the result of
  <a>getting a structured field value</a> given `<code>Available-Dictionary</code>`,
- "<code>bytestring</code>", and <var>request</var>'s <a for=request>header list</a>.
+ "<code>item</code>", and <var>request</var>'s <a for=request>header list</a>.
+
+ <li><p>If <var>availableDictionaryItem</var> is null, then return a <a>network error</a>.
+
+ <li><p>Let <var>availableDictionaryHash</var> be the bare item of <var>availableDictionaryItem</var>.
 
  <li><p>Let <var>newBody</var> be a new <a for=/>body</a> whose <a for=body>stream</a> is the
  result of transforming <var>response</var>'s <a for=response>body</a>'s <a for=body>stream</a>