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27 lines
967 B
HTML
27 lines
967 B
HTML
<!doctype html>
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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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<div style="height: 1000px; width: 1000px;"></div>
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<div id="frag"></div>
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<script>
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promise_test(async t => {
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// Wait for after the load event so that the navigation doesn't get converted
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// into a replace navigation.
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await new Promise(resolve => window.onload = () => t.step_timeout(resolve, 0));
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assert_equals(window.scrollY, 0);
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await navigation.navigate("#frag").finished;
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assert_not_equals(window.scrollY, 0);
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let navigate_event;
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navigation.onnavigate = e => {
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navigate_event = e;
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e.intercept({ scroll: "manual" });
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};
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await navigation.back().finished;
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assert_not_equals(window.scrollY, 0);
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assert_throws_dom("InvalidStateError", () => navigate_event.scroll());
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assert_not_equals(window.scrollY, 0);
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}, "scroll: scroll() should throw after a navigation finished promise fulfills");
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</script>
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</body>
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