Use boolean for algo

fetch.bs

@@ -2850,7 +2850,7 @@ steps:
    <a>connection</a>.
   </ol>
 
- <li><p>Let <var>proxies</var> of calling <a>resolve proxies</a> given <var>url</var>.
+ <li><p>Let <var>proxies</var> be the result of calling <a>resolve proxies</a> given <var>url</var>.
 
  <li><p>Let <var>timingInfo</var> be a new <a for=/>connection timing info</a>.
 
@@ -3044,8 +3044,8 @@ boolean <var>credentials</var>, run these steps:
  <var>environment</var>.
 
  <li>
-  <p>Run <a>Should connection be allowed by Content Security Policy?</a> with
-  <var>environment</var> and <var>url</var>. If that returns <b>allowed</b>,
+  <p>Run <a>determine if Content Security Policy allows connection</a> with
+  <var>environment</var> and <var>url</var>. If that returns true,
   <a>obtain a connection</a> with <var>key</var>, <var>url</var>, and <var>credentials</var>.
 
   <p class=note>This connection is obtained but not used directly. It will remain in the
@@ -3063,7 +3063,7 @@ boolean <var>credentials</var>, run these steps:
 </ol>
 </div>
 
-<div>
+<div algorithm>
 <p>To <dfn export>preemptively resolve an origin</dfn>, given an
 <a>environment settings object</a> <var>environment</var> and a <a for=/>URL</a> <var>url</var>, run
 these steps:
@@ -3072,8 +3072,8 @@ these steps:
  <li><p>Let <var>key</var> be the result of <a for=/>determining the network partition key</a> given
  <var>environment</var>.
 
- <li>Run <p><a>Should connection be allowed by Content Security Policy?</a> with
- <var>environment</var> and <var>url</var>. If that returns <b>blocked</b>, return.
+ <li>Run <p><a>determine if Content Security Policy allows connection</a> with
+ <var>environment</var> and <var>url</var>. If that returns false, return.
 
  <li><p>Let <var>proxies</var> be the result of calling <a>resolve proxies</a>.
 
@@ -3085,18 +3085,19 @@ these steps:
 </ol>
 </div>
 
-<div algorithm="check-preemptive-operation-csp">
-<p>To <dfn>Should connection be allowed by Content Security Policy?</dfn>, given an
-<a>environment settings object</a> <var>environment</var>, and a <a for=/>URL</a> <var>url</var>,
-run these steps:
+<div algorithm>
+<p>To <dfn>determine if Content Security Policy allows connection</dfn>, given an
+<a>environment settings object</a> <var>environment</var>, and a <a for=/>URL</a> <var>url</var>:
 
 <ol>
  <li><p>Let <var>request</var> be a <a for=/>request</a> whose <a for=request>URL</a> is
  <var>url</var>, <a for=request>initiator</a> is "<code>prefetch</code>", and whose
  <a for=request>client</a> is <var>environment</var>.
 
- <li><p>Return the result of running <a>should request be blocked by Content Security Policy?</a>
- given <var>request</var>.
+ <li><p>Let <var>result</var> be the result of running
+ <a>should request be blocked by Content Security Policy?</a> given <var>request</var>.
+
+ <li><p>Return true if <var>result</var> is <b>allowed</b>, otherwise false.
 </ol>
 </div>