// META: script=resources/document-open-side-effects.js for (const ev of ["unload", "beforeunload", "pagehide"]) { async_test(t => { const iframe = document.body.appendChild(document.createElement("iframe")); t.add_cleanup(() => iframe.remove()); iframe.src = "/common/blank.html"; iframe.onload = t.step_func(() => { iframe.contentWindow.addEventListener(ev, t.step_func_done(() => { const origURL = iframe.contentDocument.URL; assertDocumentIsReadyForSideEffectsTest(iframe.contentDocument, `ignore-opens-during-unload counter is greater than 0 during ${ev} event`); assert_equals(iframe.contentDocument.open(), iframe.contentDocument); assertOpenHasNoSideEffects(iframe.contentDocument, origURL, `ignore-opens-during-unload counter is greater than 0 during ${ev} event`); })); iframe.src = "about:blank"; }); }, `document.open bailout should not have any side effects (ignore-opens-during-unload is greater than 0 during ${ev} event)`); }