chromium/third_party/blink/web_tests/media/media-extension-with-fragment.html

<!DOCTYPE html>
<title>Test that a media url with fragment loads properly</title>
<script src="../resources/testharness.js"></script>
<script src="../resources/testharnessreport.js"></script>
<video></video>
<script>
async_test(function(t) {
    var video = document.querySelector("video");
    video.onloadeddata = t.step_func_done();
    video.onerror = t.unreached_func();
    video.src = "content/test.ogv" + "#01.00.xyz";
});
</script>