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// META: script=resources/document-open-side-effects.js
async_test(t => {
const iframe = document.body.appendChild(document.createElement("iframe"));
t.add_cleanup(() => iframe.remove());
iframe.src = "/common/dummy.xhtml";
iframe.onload = t.step_func_done(() => {
const origURL = iframe.contentDocument.URL;
assertDocumentIsReadyForSideEffectsTest(iframe.contentDocument, "XML document");
assert_throws_dom(
"InvalidStateError",
iframe.contentWindow.DOMException,
() => {
iframe.contentDocument.open();
},
"document.open() should throw on XML documents"
);
assertOpenHasNoSideEffects(iframe.contentDocument, origURL, "XML document");
});
}, "document.open bailout should not have any side effects (XML document)");
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