23 lines
867 B
HTML
23 lines
867 B
HTML
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<!DOCTYPE html>
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<meta charset="utf-8">
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<title>window.opener setter throws TypeError if [[DefineOwnProperty]] fails</title>
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<link rel="help" href="https://html.spec.whatwg.org/multipage/browsers.html#dom-opener">
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<script src="../../resources/testharness.js"></script>
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<script src="../../resources/testharnessreport.js"></script>
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<body>
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<script>
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test(() => {
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Object.defineProperty(window, "opener", { configurable: false });
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assert_throws(new TypeError, () => { window.opener = 1; });
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const desc = Object.getOwnPropertyDescriptor(window, "opener");
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assert_false("value" in desc);
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assert_equals(typeof desc.get, "function");
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assert_equals(typeof desc.set, "function");
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assert_true(desc.enumerable);
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assert_false(desc.configurable);
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}, "window.opener setter throws TypeError if called on non-configurable accessor property");
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</script>
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