diff --git a/index.html b/index.html
index b1f33fc..689db3e 100644
--- a/index.html
+++ b/index.html
@@ -90,17 +90,9 @@ <h3>
         </h3>
         <pre class="idl">
           partial interface Navigator {
-            [SecureContext] Promise&lt;void&gt; share(optional ShareData data);
+            [SecureContext] Promise&lt;void&gt; share(optional ShareData data = {});
           };
         </pre>
-        <div class="note">
-          The <var>data</var> argument is marked as "optional", but it is
-          effectively required; <a>share()</a> will return a rejected promise
-          with a {{TypeError}} if called with no arguments. WebIDL
-          <a data-cite="WEBIDL#idl-operations">mandates that it be optional</a>
-          because the dictionary members are all optional. See WebIDL <a href=
-          "https://github.com/heycam/webidl/issues/130">Issue #130</a>.
-        </div>
         <p>
           User agents that do not support sharing SHOULD NOT expose
           <a>share()</a> on the <a>Navigator</a> interface.