chromium/third_party/blink/web_tests/external/wpt/webvtt/rendering/cues-with-video/processing-model/navigate_cue_position.html

<!doctype html>
<html class="reftest-wait">
<title>WebVTT rendering, cue position after navigation</title>
<link rel="match" href="navigate_cue_position-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/utils.js"></script>
<style>iframe {width:100%; height:500px}</style>
<script>
var uuid = token();
onload = function() {
    var frame = document.getElementsByTagName("iframe")[0].contentWindow;
    if (sessionStorage[uuid]) {
        document.body.appendChild(document.createTextNode('FAIL (page reloaded after navigation)'));
        delete sessionStorage[uuid]
        takeScreenshotDelayed(100);
    } else {
        setTimeout(function() {
            frame.location.assign('data:text/html,<body onload="setTimeout(function(){history.back()}, 100); sessionStorage[\'' + uuid + '\'] = \'true\';">x');
            setTimeout(function() {
                delete sessionStorage[uuid];
                takeScreenshot();
            }, 500);
        }, 100);
    }
}
</script>
<iframe src="navigate_cue_position-1.html"></iframe>