chromium/third_party/blink/web_tests/external/wpt/preload/preload-with-type.html

<!DOCTYPE html>
<title>Makes sure that preloaded resources with a type attribute trigger the onload event</title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/preload/resources/preload_helper.js"></script>
<script src="/common/media.js"></script>
<script>
    var scriptLoaded = false;
    var styleLoaded = false;
    var imageLoaded = false;
    var fontLoaded = false;
    var videoLoaded = false;
    var audioLoaded = false;
    var trackLoaded = false;
    var gibberishLoaded = 0;
    var getFormat = function(url) {
        var dot = url.lastIndexOf('.');
        if (dot != -1) {
            var extension = url.substring(dot + 1);
            if (extension.startsWith("og"))
                return "ogg";
            return extension;
        }
        return null;
    };
    var videoURL = getVideoURI("resources/A4");
    var audioURL = getAudioURI("resources/sound_5");
    var videoFormat = getFormat(videoURL);
    var audioFormat = getFormat(audioURL);
</script>
<link rel=preload href="resources/dummy.js" as=script type="text/javascript" onload="scriptLoaded = true;">
<link rel=preload href="resources/dummy.css" as=style type="text/css" onload="styleLoaded = true;">
<link rel=preload href="resources/square.png" as=image type="image/png" onload="imageLoaded = true;">
<link rel=preload href="/fonts/CanvasTest.ttf" as=font type="font/ttf" crossorigin onload="fontLoaded = true;">
<script>
    document.write('<link rel=preload href="' + videoURL + '" as=video type="video/' + videoFormat + '" onload="videoLoaded = true;">');
    document.write('<link rel=preload href="' + audioURL + '" as=audio type="audio/' + audioFormat + '" onload="audioLoaded = true;">');
</script>
<link rel=preload href="resources/foo.vtt" as=track type="text/vtt" onload="trackLoaded = true;">
<link rel=preload href="resources/dummy.js" as=script type="application/foobar" onload="gibberishLoaded++;">
<link rel=preload href="resources/dummy.css" as=style type="text/foobar" onload="gibberishLoaded++;">
<link rel=preload href="resources/square.png" as=image type="image/foobar" onload="gibberishLoaded++;">
<link rel=preload href="/fonts/CanvasTest.ttf" as=font type="font/foobar" crossorigin onload="gibberishLoaded++;">
<script>
    document.write('<link rel=preload href="' + videoURL + '" as=video type="video/foobar" onload="gibberishLoaded++;">');
    document.write('<link rel=preload href="' + audioURL + '" as=audio type="audio/foobar" onload="gibberishLoaded++;">');
</script>
<link rel=preload href="resources/foo.vtt" as=track type="text/foobar" onload="gibberishLoaded++;">
<body>
<script>
    setup({single_test: true});

    var iterations = 0;

    function check_finished() {
        if (styleLoaded && scriptLoaded && imageLoaded && fontLoaded && videoLoaded && audioLoaded &&
            trackLoaded && gibberishLoaded == 0) {
            done();
        }
        iterations++;
        if (iterations == 10) {
            // At least one is expected to fail, but this should give details to the exact failure(s).
            assert_true(styleLoaded, "style triggered load event");
            assert_true(scriptLoaded, "script triggered load event");
            assert_true(imageLoaded, "image triggered load event");
            assert_true(fontLoaded, "font triggered load event");
            assert_true(videoLoaded, "video triggered load event");
            assert_true(audioLoaded, "audio triggered load event");
            assert_true(trackLoaded, "track triggered load event");
            assert_equals(gibberishLoaded, 0, "resources with gibberish type should not be loaded");
            done();
        } else {
            step_timeout(check_finished, 500);
        }
    }

    window.addEventListener("load", function() {
        verifyPreloadAndRTSupport();
        step_timeout(check_finished, 500);
    });
</script>
</body>
</html>