module-tla-immediate-promise-iframe.html (267B)
1 <!doctype html> 2 <script type=module> 3 await new Promise(resolve => { 4 document.write("document.write body contents\n"); 5 document.close(); 6 window.parent.document.dispatchEvent(new CustomEvent("documentWriteDone")); 7 resolve(); 8 }); 9 </script> 10 Initial body contents