<!DOCTYPE html>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/preload/resources/preload_helper.js"></script>
<script>
    var t = async_test('Makes sure that a dynamically added preload with imagesrcset works');
</script>
<body>
<script>
    t.step(function() {
        verifyPreloadAndRTSupport();
        var link = document.createElement("link");
        link.as = "image";
        link.rel = "preload";
        link.href = "resources/square.png?default";
        link.imageSrcset = "resources/square.png?200 200w, resources/square.png?400 400w, resources/square.png?800 800w";
        link.imageSizes = "400px";
        link.onload = t.step_func(function() {
            t.step_timeout(function() {
                verifyNumberOfDownloads("resources/square.png?default", 0);
                verifyNumberOfDownloads("resources/square.png?200", 0);
                verifyNumberOfDownloads("resources/square.png?400", 1);
                verifyNumberOfDownloads("resources/square.png?800", 0);
                t.done();
            }, 0);
        });
        document.body.appendChild(link);
    });
</script>
<script src="resources/dummy.js?pipe=trickle(d5)&dynamic-adding-preload"></script>
</body>