prompt-by-before-unload-inner-frame.html (337B)
1 <!DOCTYPE html> 2 <script src="/speculation-rules/prerender/resources/utils.js"></script> 3 <script> 4 const params = new URLSearchParams(location.search); 5 const uid = params.get('uid'); 6 7 window.onload = function(e) { 8 const bc = new PrerenderChannel('inner-channel', uid); 9 bc.postMessage('a new page is loaded'); 10 bc.close(); 11 } 12 </script>