<!DOCTYPE html> <!-- webkit-test-runner [ useFlexibleViewport=true AsyncOverflowScrollingEnabled=true AsyncFrameScrollingEnabled=true ] -->
<html>
<head>
    <meta name='viewport' content='initial-scale=1.0'>
    <style>
        .scroller {
            margin: 10px;
            height: 300px;
            width: 300px;
            border: 1px solid black;
            overflow: scroll;
            z-index: 0;
            position: relative;
        }
        
        .fixed {
            position: fixed;
            top: 0px;
            width: 200px;
            height: 200px;
            background-color: green;
        }
    </style>
    <script src='../../resources/ui-helper.js'></script>
    <script>
        if (window.testRunner)
            testRunner.waitUntilDone();

        async function doTest()
        {
            if (!window.testRunner)
                return;

            if (!testRunner.runUIScript)
                return;

            await UIHelper.ensurePresentationUpdate();
            frame.contentDocument.querySelector('.scroller').scrollTo(0, 200);
            await UIHelper.ensurePresentationUpdate();

            if (window.testRunner)
                testRunner.notifyDone();
        }
        
        window.addEventListener('load', doTest, false);
    </script>
</head>
<body>
    <iframe id='frame' width=300 height=400 srcdoc="<!DOCTYPE html>
        <html>
        <head>
            <style>
                .scroller {
                    margin: 10px;
                    height: 300px;
                    width: 300px;
                    border: 1px solid black;
                    overflow: scroll;
                    z-index: 0;
                    position: relative;
                }

                .fixed {
                    position: fixed;
                    bottom: 0px;
                    right: 0px;
                    width: 200px;
                    height: 200px;
                    background-color: green;
                }
                .spacer {
                    height: 1000px;
                    border: 2px solid blue;
                }
            </style>
        </head>
        <body>
            <div class='scroller'>
                <div class='fixed'></div>
                <div class='spacer'></div>
            </div>
        </body>
        </html>"
    ></iframe>
</body>
</html>