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<!DOCTYPE HTML>
<meta charset=utf-8>
<title>Long Animation Frame Timing: source location should not expose cross-origin redirects</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/utils.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<script src="resources/utils.js"></script>
<body>
<h1>Long Animation Frame: source location with cross-origin redirects</h1>
<div id="log"></div>
<script>
const {REMOTE_ORIGIN} = get_host_info();
function corsify(url, cors) {
if (!cors)
return url.href;
url.searchParams.set("pipe", "header(Access-Control-Allow-Origin, *)");
return url.href;
}
const targetURL = (path, cors) =>
corsify(new URL(path, REMOTE_ORIGIN), cors);
function crossOriginRedirectURL(path, cors) {
const url = new URL(`/common/redirect.py`, REMOTE_ORIGIN);
url.searchParams.set("location", targetURL(path, cors));
return corsify(url, cors);
}
function test_source_location_with_redirect({path, type, name}) {
for (let scriptType of ["classic-opaque", "classic-cors", "module"]) {
const cors = scriptType !== "classic-opaque";
promise_test(async t => {
const VERY_LONG_FRAME_DURATION = 360;
const preRedirectURL = crossOriginRedirectURL(path, cors);
const postRedirectURL = targetURL(path, cors);
let [entry, script] = await expect_long_frame_with_script(() => {
const script = document.createElement("script");
script.src = preRedirectURL;
if (scriptType === "module")
script.type = "module";
else if (cors)
script.crossOrigin = "anonymous";
document.body.appendChild(script);
t.add_cleanup(() => script.remove());
}, script => script.duration >= VERY_LONG_FRAME_DURATION - 5, t);
const result =
script.sourceURL.startsWith(postRedirectURL) ? "post-redirect" :
script.sourceURL.startsWith(preRedirectURL) ? "pre-redirect" :
script.sourceURL === "" ?
"empty" : "other";
assert_not_equals(result, "other", `Unexpected source location ${script.sourceURL}`);
if (!cors)
assert_equals(script.executionStart, script.startTime, "Opaque scripts should hide execution start time");
if (cors) {
assert_not_equals(result, "empty", "CORS-ok scripts should expose sourceLocation");
} else {
assert_not_equals(result, "post-redirect", "No-CORS classic scripts should not expose post-redirect URL");
assert_equals(script.sourceCharPosition, type === "script-block" ? 0 : -1, "No-CORS classic scripts should not expose character index");
}
}, `Test ${type} with ${scriptType}`);
}
}
test_source_location_with_redirect({
path: "/long-animation-frame/tentative/resources/busy.js",
type: "script-block"
});
test_source_location_with_redirect({
path: "/long-animation-frame/tentative/resources/raf-generates-loaf.js",
name: "FrameRequestCallback",
type: "user-callback"
});
test_source_location_with_redirect({
path: "/long-animation-frame/tentative/resources/event-generates-loaf.js",
type: "event-listener",
name: "XMLHttpRequest.onload"
});
test_source_location_with_redirect({
path: "/long-animation-frame/tentative/resources/promise-generates-loaf.js",
type: "resolve-promise",
name: "Window.fetch.then"
});
</script>
</body>
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