<!DOCTYPE html> <!-- webkit-test-runner [ internal:AsyncOverflowScrollingEnabled=true ] -->
<html>
<head>
    <title>Overflow scrollers containing fixed backgrounds should repaint on scroll.</title>
    <style>
        body {
            margin: 0;
        }
        .scroller {
            background-color: silver;
            width: 400px;
            height: 400px;
            overflow: scroll;
        }
        
        .scrolling-content {
            height: 800px;
            background-image: linear-gradient(green, green 400px, red 400px, red 800px);
            background-attachment: fixed;
        }
    </style>
    <script>
        if (window.testRunner)
            testRunner.waitUntilDone();

        window.addEventListener('load', () => {
            let scroller = document.querySelector('.scroller');
            setTimeout(() => {
                scroller.scrollTop = 200;
                if (window.testRunner)
                    testRunner.notifyDone();
            }, 0);
        }, false);
    </script>
</head>
<body>
    <div class="scroller">
        <div class="scrolling-content">
        </div>
    </div>
</body>
</html>