ladybird/Tests/LibWeb/Text/input/HTML/autoplay-policy-default-blocks-audio.html

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<!DOCTYPE html>
<!-- Pin the policy here (not via the browser setting test-web inherits) so the result is deterministic
regardless of test order on a reused WebContent process. Served over HTTP (see the .headers file)
so the file:// autoplay carve-out does not apply: under "Block Audio", muted media autoplays while
audible media does not. -->
<script>internals.setAutoplayPolicy("block-audio");</script>
<video autoplay muted id="muted" src="../../../Assets/test-webm.webm"></video>
<video autoplay id="audible" src="../../../Assets/test-webm.webm"></video>
<script src="../include.js"></script>
<script>
asyncTest(done => {
const results = {};
let remaining = 2;
setTimeout(() => {
println("FAIL: timeout waiting for media to load");
done();
}, 15_000);
function watch(key, video) {
const finish = value => {
results[key] = value;
if (--remaining === 0) {
println(`muted video autoplays: ${results.muted}`);
println(`audible video autoplays: ${results.audible}`);
done();
}
};
video.addEventListener("canplaythrough", () => finish(!video.paused));
video.addEventListener("error", () => finish("error"));
}
watch("muted", document.getElementById("muted"));
watch("audible", document.getElementById("audible"));
});
</script>