Editorial: align with changes to URL and File API

See whatwg/url#371 for context.

fetch.bs

@@ -1047,12 +1047,12 @@ outlawing <a>forbidden methods</a> and
 
 <p>A <a for=/>request</a> has an associated
 <dfn id=concept-request-reserved-client export for=request>reserved client</dfn>
-(null, an <a>environment</a>, or an
+(null, an <a for=/>environment</a>, or an
 <a>environment settings object</a>). Unless stated otherwise it is null.
 
 <p class="note no-backref">This is only used by <a>navigation requests</a> and worker
 requests, but not service worker requests. It references an
-<a>environment</a> for a <a>navigation request</a> and an
+<a for=/>environment</a> for a <a>navigation request</a> and an
 <a>environment settings object</a> for a worker request.
 
 <p>A <a for=/>request</a> has an associated
@@ -3295,9 +3295,9 @@ with a <i>CORS flag</i> and <i>recursive flag</i>, run these steps:
     <p>If <var>request</var>'s <a for=request>current URL</a>'s <a for=url>scheme</a> is
     "<code>ftp</code>", <var>request</var>'s <a for=request>client</a>'s
     <a for=environment>creation URL</a>'s <a for=url>scheme</a> is not "<code>ftp</code>", and
-    <var>request</var>'s <a for=request>reserved client</a> is either null or an <a>environment</a>
-    whose <a for=environment>target browsing context</a> is a <a>nested browsing context</a>, then
-    set <var>response</var> to a <a>network error</a>.
+    <var>request</var>'s <a for=request>reserved client</a> is either null or an
+    <a for=/>environment</a> whose <a for=environment>target browsing context</a> is a
+    <a>nested browsing context</a>, then set <var>response</var> to a <a>network error</a>.
 
    <li>
     <p>Set <var>request</var>'s <a for=request>current URL</a>'s <a for=url>scheme</a> to
@@ -3641,7 +3641,7 @@ with a <i>CORS flag</i> and <i>recursive flag</i>, run these steps:
 
     <ol>
      <li><p>Let <var>blob</var> be <var>request</var>'s <a for=request>current URL</a>'s
-     <a for=url>object</a>.
+     <a for=url>blob URL entry</a>'s <a for="blob URL entry">object</a>.
 
      <li>
       <p>If <var>request</var>'s <a for=request>method</a> is not `<code>GET</code>` or