16 lines
812 B
JavaScript
16 lines
812 B
JavaScript
async_test(t => {
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// Setting document.domain makes this document cross-origin with that of the frame. However,
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// about:blank will end up reusing the origin of this document, at which point the frame's
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// document is no longer cross-origin.
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const frame = document.body.appendChild(document.createElement('iframe'));
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document.domain = document.domain;
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frame.src = "/common/blank.html";
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frame.onload = t.step_func(() => {
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assert_throws_dom("SecurityError", () => window[0].document);
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frame.src = "about:blank";
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frame.onload = t.step_func_done(() => {
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// Ensure we can access the child browsing context after navigation to non-initial about:blank
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assert_equals(window[0].document, frame.contentDocument);
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});
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});
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}, "Navigated frame to about:blank and document.domain");
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