from-cross-realm.https.html (593B)
1 <html class="test-wait"> 2 <meta charset="utf-8"> 3 <script type="module"> 4 let a = window.open() 5 try { 6 let dir = await a.navigator.storage.getDirectory() 7 let hdl = await dir.getFileHandle("7399d8cf-9ff9-494d-89eb-d3045f229c27", {"create": true}) 8 let map = new Map([[]]) 9 let b = ReadableStream.from(map) 10 let c = await hdl.createWritable({ }) 11 await b.pipeTo(c, { }).catch(() => { 12 // Error expected as we are not piping the right form of chunk to FileHandle 13 }) 14 } finally { 15 document.documentElement.classList.remove("test-wait") 16 a.close() 17 } 18 </script>