Be more specific about initiator types (#300)

* Be more specific about initiator types

* Add frame and frameset

Author: noamr

index.html

@@ -502,8 +502,9 @@ <h3>
           `initiatorType` returns one of the following values:
         </p>
         <ul class='note'>
-          <li>The same value as the {{Element/localName}} of an [=element=], if
-          the request is a result of processing an HTML element;
+          <li>
+            <dfn>"navigation"</dfn>, if the request is a [=navigation
+            request=];
           </li>
           <li>
             <dfn>"css"</dfn>, if the request is a result of processing a CSS
@@ -512,8 +513,9 @@ <h3>
             [[CSS-VALUES]]
           </li>
           <li>
-            <dfn>"navigation"</dfn>, if the request is a [=navigation
-            request=];
+            <dfn>"script"</dfn>, if the request is a result of loading any
+            <a data-cite="HTML#concept-script">script</a> (a classic [^script^], a
+            [=module script=], or a {{Worker}}).
           </li>
           <li>
             <dfn>"xmlhttprequest"</dfn>, if the request is a result of
@@ -527,6 +529,42 @@ <h3>
             <dfn>"beacon"</dfn>, if the request is the result of processing the
             {{Navigator/sendBeacon()}} method; [[BEACON]]
           </li>
+          <li>
+            <dfn>"video"</dfn>, if the request is the result of processing the
+            [^video^] element's [^video/poster^] or [^video/src^].
+          </li>
+          <li>
+            <dfn>"audio"</dfn>, if the request is the result of processing the
+            [^audio^] element's [^audio/src^].
+          </li>
+          <li>
+            <dfn>"track"</dfn>, if the request is the result of processing the
+            [^track^] element's [^track/src^].
+          </li>
+          <li>
+            <dfn>"img"</dfn>, if the request is the result of processing the
+            [^img^] element's [^img/src^] or [^img/srcset^].
+          </li>
+          <li>
+            <dfn>"image"</dfn>, if the request is the result of processing the
+            <a data-cite=
+          "SVG2/embedded.html#ImageElement">image</a> element. [[SVG2]]
+          </li>
+          <li>
+            <dfn>"input"</dfn>, if the request is the result of processing an
+            [^input^] element of [^input/type^] [^input/type/image^].
+          </li>
+          <li>
+            <dfn>"a"</dfn>, if the request is the result of processing an
+            [^a^] element's [^a/download^] or [^a/ping^].
+          </li>
+          <li>
+            <dfn>"iframe"</dfn>, if the request is the result of processing an [^iframe^]'s
+            [^iframe/src^].
+          </li>
+          <li>
+            <dfn>"frame"</dfn>, if the request is the result of loading a [^frame^].
+          </li>
           <li>
             <dfn>"other"</dfn>, if none of the above conditions match.
           </li>