fetch-request-xhr-sync-iframe.html (262B)
1 <!DOCTYPE html> 2 <title>Service Worker: Synchronous XHR is intercepted iframe</title> 3 <script> 4 'use strict'; 5 6 function performSyncXHR(url) { 7 var syncXhr = new XMLHttpRequest(); 8 syncXhr.open('GET', url, false); 9 syncXhr.send(); 10 11 return syncXhr; 12 } 13 </script>