--- a/encrypted-media/encrypted-media.html	Tue Apr 15 16:47:13 2014 -0700
+++ b/encrypted-media/encrypted-media.html	Tue Apr 15 17:07:15 2014 -0700
@@ -461,7 +461,7 @@
 
     <ol>
       <li><p>If <var title="true">initDataType</var> is an empty string, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initDataType parameter is empty."</p></li>
-      <li><p>If <var title="true">initData</var> is null or an empty array, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is<code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initData parameter is empty."</p></li>
+      <li><p>If <var title="true">initData</var> is an empty array, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is<code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initData parameter is empty."</p></li>
       <li><p>If <var title="true">initDataType</var> is not an <a href="#initialization-data-type">initialization data type</a> supported by the <a href="#cdm">content decryption module</a> corresponding to the <code><a href="#dom-keysystem">keySystem</a></code>, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is <code><a href="#dfn-NotSupportedError">"NotSupportedError"</a></code> and that has the message "The initialization data type <var title="true">initDataType</var> is not supported by the key system."</p></li>
       <li><p>Let <var>promise</var> be a new promise.</p></li>
       <li>
@@ -599,7 +599,7 @@
     <p class="non-normative">Note: The contents of <var title="true">response</var> are <var title="true"><a href="#key-system">keySystem</a></var>-specific.</p>
 
     <ol>
-      <li><p>If <var title="true">response</var> is null or an empty array, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The response parameter is empty."</p></li>
+      <li><p>If <var title="true">response</var> is an empty array, return a promise rejected with a new <code><a href="http://www.w3.org/TR/dom/#exception-domexception">DOMException</a></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The response parameter is empty."</p></li>
       <li><p>Let <var>promise</var> be a new promise.</p></li>
       <li>
 <p>Run the following steps asynchronously:</p>

--- a/encrypted-media/encrypted-media.xml	Tue Apr 15 16:47:13 2014 -0700
+++ b/encrypted-media/encrypted-media.xml	Tue Apr 15 17:07:15 2014 -0700
@@ -448,7 +448,7 @@
 
     <ol>
       <li><p>If <var title="true">initDataType</var> is an empty string, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initDataType parameter is empty."</p></li>
-      <li><p>If <var title="true">initData</var> is null or an empty array, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is<code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initData parameter is empty."</p></li>
+      <li><p>If <var title="true">initData</var> is an empty array, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is<code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The initData parameter is empty."</p></li>
       <li><p>If <var title="true">initDataType</var> is not an <a href="#initialization-data-type">initialization data type</a> supported by the <a href="#cdm">content decryption module</a> corresponding to the <coderef>keySystem</coderef>, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is <code><a href="#dfn-NotSupportedError">"NotSupportedError"</a></code> and that has the message "The initialization data type <var title="true">initDataType</var> is not supported by the key system."</p></li>
       <li><p>Let <var>promise</var> be a new promise.</p></li>
       <li><p>Run the following steps asynchronously:</p>
@@ -574,7 +574,7 @@
     <p class="non-normative">Note: The contents of <var title="true">response</var> are <var title="true"><a href="#key-system">keySystem</a></var>-specific.</p>
 
     <ol>
-      <li><p>If <var title="true">response</var> is null or an empty array, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The response parameter is empty."</p></li>
+      <li><p>If <var title="true">response</var> is an empty array, return a promise rejected with a new <code><dom4ref name="exception-domexception">DOMException</dom4ref></code> whose name is <code><a href="#dfn-InvalidAccessError">"InvalidAccessError"</a></code> and that has the message "The response parameter is empty."</p></li>
       <li><p>Let <var>promise</var> be a new promise.</p></li>
       <li><p>Run the following steps asynchronously:</p>
         <ol>