// META: script=/html/resources/common.js // META: script=resources/document-open-side-effects.js document.domain = "{{host}}"; testInIFrame("http://{{host}}:{{ports[http][1]}}/common/domain-setter.sub.html", (ctx) => { const iframe = ctx.iframes[0]; const origURL = iframe.contentDocument.URL; assertDocumentIsReadyForSideEffectsTest(iframe.contentDocument, "same origin-domain (but not same origin) document"); assert_throws_dom("SecurityError", iframe.contentWindow.DOMException, () => { ctx.iframes[0].contentDocument.open(); }, "document.open() should throw a SecurityError on a same origin-domain (but not same origin) document"); assertOpenHasNoSideEffects(iframe.contentDocument, origURL, "same origin-domain (but not same origin) document"); }, "document.open bailout should not have any side effects (same origin-domain (but not same origin) document)");