Editorial: clarify Receiving a Push Message

This makes it more clearly talk about bytes rather than plain text. It also turns a redundant requirement into a statement of fact.

Author: annevk

index.html

@@ -978,7 +978,7 @@ 
         };
       pre>
       <p>
-        <a>PushMessageDataa> objects have an associated <dfn>bytesdfn> (a [=byte sequence=]),
+        {{PushMessageData}} objects have an associated <dfn>bytesdfn> (a [=byte sequence=]),
         which is set on creation.
       p>
       <p>
@@ -1123,32 +1123,29 @@ 
           li>
           <li>Let |subscription| be the active <a>push subscriptiona> for |registration|.
           li>
-          <li>Initialize |data| to a value of `null`.
+          <li>Let |bytes| be null.
           li>
-          <li>If the <a>push messagea> contains a payload, perform the following steps:
+          <li>If the <a>push messagea> contains a payload:
             <ol>
-              <li>Decrypt the <a>push messagea> using the private key from the key pair
-              associated with |subscription| and the process described in [[RFC8291]]. This
-              produces the plain text of the message.
+              <li>Decrypt the <a>push messagea> payload using the private key from the key pair
+              associated with |subscription| and the process described in [[RFC8291]]. Set |bytes|
+              to the resulting [=/byte sequence=].
               li>
-              <li>If the <a>push messagea> could not be decrypted for any reason, perform the
-              following steps:
+              <li>If the <a>push messagea> payload could not be decrypted for any reason:
                 <ol>
                   <li>Acknowledge the receipt of the <a>push messagea> according to [[RFC8030]].
                   Though the message was not successfully received and processed, this prevents the
                   push service from attempting to retransmit the message; a badly encrypted message
                   is not recoverable.
                   li>
-                  <li>Discard the <a>push messagea>.
+                  <li>Abort these steps.
                   li>
-                  <li>Terminate this process.
-                  li>
-                ol>A `push` event MUST NOT be fired for a <a>push messagea> that was not
-                successfully decrypted using the key pair associated with the <a>push
-                subscriptiona>.
-              li>
-              <li>Let |data| be a new <a>PushMessageDataa> instance with the decrypted plain text
-              of the <a>push messagea>.
+                ol>
+                <p class="note">
+                  A `push` event will not be fired for a <a>push messagea> that was not
+                  successfully decrypted using the key pair associated with the <a>push
+                  subscriptiona>.
+                p>
               li>
             ol>
           li>
@@ -1162,7 +1159,7 @@ 
                 `data`
               dt>
               <dd>
-                |data|
+                A new {{PushMessageData}} object whose [=bytes=] is |bytes|.
               dd>
             dl>
             <p>