27 lines
1.2 KiB
JavaScript
27 lines
1.2 KiB
JavaScript
// META: script=/common/utils.js
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// META: script=resources/early-hints-helpers.sub.js
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promise_test(async (t) => {
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const iframe = document.createElement("iframe");
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const resource_url = SAME_ORIGIN_RESOURCES_URL + "/empty.js?" + token();
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const params = new URLSearchParams();
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params.set("resource-url", resource_url);
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params.set("token", token());
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params.set("x-frame-options", "DENY");
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const iframe_url = SAME_ORIGIN_RESOURCES_URL + "/html-with-early-hints.h2.py?" + params.toString();
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iframe.src = iframe_url;
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document.body.appendChild(iframe);
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// Make sure the iframe didn't load. See https://github.com/whatwg/html/issues/125 for why a
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// timeout is used here. Long term all network error handling should be similar and have a
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// reliable event.
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assert_equals(iframe.contentDocument.body.localName, "body");
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await t.step_wait(() => iframe.contentDocument === null);
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// Fetch the hinted resource and make sure it's not preloaded.
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await fetchScript(resource_url);
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const entries = performance.getEntriesByName(resource_url);
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assert_equals(entries.length, 1);
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assert_not_equals(entries[0].transferSize, 0);
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}, "Early hints for an iframe that violates X-Frame-Options should be ignored.");
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