CORS: Clarify what XHR upload event-listening triggers preflight

Fixes #3062
mdn · Mar 15, 2021 · b9fe2fb · b9fe2fb
1 parent bb8c53c
commit b9fe2fb
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/files/en-us/web/http/cors/index.html b/files/en-us/web/http/cors/index.html
@@ -85,7 +85,7 @@ <h3 id="Simple_requests">Simple requests</h3>
    <li><code>text/plain</code></li>
   </ul>
  </li>
- <li>No event listeners are registered on any {{domxref("XMLHttpRequest.upload")}} object used in the request; these are accessed using the {{domxref("XMLHttpRequest.upload")}} property.</li>
+ <li>No event listeners are registered on any <code>XMLHttpRequestUpload</code> object used in the request; that is, given an {{domxref("XMLHttpRequest")}} instance <code>xhr</code>, no code has called <code>xhr.upload.addEventListener()</code> to add an event listener to monitor the upload.</li>
  <li>No {{domxref("ReadableStream")}} object is used in the request.</li>
 </ul>