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<!DOCTYPE html>
<title>Ensure preloaded resources are not downloaded again when used</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/preload/resources/preload_helper.js"></script>
<link rel=preload href="resources/square.png?pipe=trickle(d1)" as=image>
<script>
setup({ single_test: true });
var link = document.getElementsByTagName("link")[0]
assert_equals(link.as, "image");
link.addEventListener("load", () => {
verifyPreloadAndRTSupport();
verifyNumberOfResourceTimingEntries("resources/square.png?pipe=trickle(d1)", 1);
var img = document.createElement("img");
img.src = "resources/square.png?pipe=trickle(d1)";
img.onload = () => {
verifyLoadedAndNoDoubleDownload("resources/square.png?pipe=trickle(d1)");
done();
};
document.body.appendChild(img);
});
</script>
<body>
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