bailout-side-effects-synchronous-script.window.js (1199B)
1 // META: script=resources/document-open-side-effects.js 2 3 async_test(t => { 4 const iframe = document.body.appendChild(document.createElement("iframe")); 5 t.add_cleanup(() => iframe.remove()); 6 self.testSynchronousScript = t.step_func(() => { 7 // Here, the entry settings object is still the iframe's. Delay it in such 8 // a way that makes the entry settings object the top-level page's, but 9 // without delaying too much that the parser becomes inactive. A microtask 10 // is perfect as it's executed in "clean up after running script". 11 Promise.resolve().then(t.step_func_done(() => { 12 const origURL = iframe.contentDocument.URL; 13 assertDocumentIsReadyForSideEffectsTest(iframe.contentDocument, "active parser whose script nesting level is greater than 0"); 14 assert_equals(iframe.contentDocument.open(), iframe.contentDocument); 15 assertOpenHasNoSideEffects(iframe.contentDocument, origURL, "active parser whose script nesting level is greater than 0"); 16 })); 17 }); 18 iframe.src = "resources/bailout-order-synchronous-script-frame.html"; 19 }, "document.open bailout should not have any side effects (active parser whose script nesting level is greater than 0)");