permissions-policy-deferred-fetch.html (257B)
1 <!DOCTYPE html> 2 <script> 3 'use strict'; 4 5 window.onload = () => { 6 let enabled = true; 7 try { 8 fetchLater('/', {activateAfter: 0}); 9 } catch (e) { 10 enabled = false; 11 } 12 parent.postMessage({ type: 'availability-result', enabled }, '*'); 13 } 14 </script>