| <!DOCTYPE html> | 
 | <html> | 
 |   <head> | 
 |     <title>Sync PUT request denied at preflight</title> | 
 |     <script src="/resources/testharness.js"></script> | 
 |     <script src="/resources/testharnessreport.js"></script> | 
 |     <script src="/common/get-host-info.sub.js"></script> | 
 |     <script src="/common/utils.js"></script> | 
 |   </head> | 
 |   <body> | 
 |     <script type="text/javascript"> | 
 | const uuid = token(); | 
 | const url = get_host_info().HTTP_REMOTE_ORIGIN + | 
 |       "/xhr/resources/access-control-preflight-denied.py?token=" + uuid; | 
 |  | 
 | test(() => { | 
 |   let xhr = new XMLHttpRequest; | 
 |   xhr.open("GET", url + "&command=reset", false); | 
 |   xhr.send(); | 
 |  | 
 |   xhr = new XMLHttpRequest; | 
 |   xhr.open("PUT", url, false); | 
 |  | 
 |   assert_throws_dom("NetworkError", () => xhr.send("")); | 
 |  | 
 |   xhr = new XMLHttpRequest; | 
 |   xhr.open("GET", url + "&command=complete", false); | 
 |   xhr.send(); | 
 |   assert_equals(xhr.responseText, "Request successfully blocked."); | 
 | }); | 
 |     </script> | 
 |   </body> | 
 | </html> |