<body>
    <p>This test ensures if the src of an image with decoding="async" is set to the src of a decoded image, no further decoding will be requested.</p>
    <img decoding="async">
    <script>
        (function() {
            if (window.internals && window.testRunner) {
                internals.clearMemoryCache();
                testRunner.waitUntilDone();
            }

            var image = new Image;
            image.src = "resources/green-400x400.png";
            image.decode().then(() => {
                document.querySelector("img").src = image.src;
                if (window.testRunner)
                    testRunner.notifyDone();
            });
        })();
    </script>
</body>