<style>
    canvas {
        width: 100px;
        height: 100px;
    }
</style>
<body>
    <p>This tests calling decode() multiple times for an animated image.</p>
    <canvas></canvas>
    <script>
        if (window.internals && window.testRunner) {
            internals.settings.setAnimatedImageDebugCanvasDrawingEnabled(true);
            testRunner.waitUntilDone();
        }

        var image = new Image;
        image.src = "resources/animated-red-green-blue-repeat-2.gif";
        // First decode() will decode the red frame.
        image.decode().then(() => {
            // Second decode() will decode the green frame.
            image.decode().then(() => {
                let canvas = document.querySelector("canvas");
                let context = canvas.getContext("2d");
                context.drawImage(image, 0, 0, canvas.width, canvas.height);
                if (window.testRunner)
                    testRunner.notifyDone();
            });
        });
    </script>
</body>