index.html

<!doctype html>
<html lang="en-us">

<head>
    <meta charset="utf-8">
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <link rel="icon" href="../favicon.png" type="image/png">
    <style>
        body {
            background-color: #000;
            margin: 0;
        }

        #canvas {
            background-color: #000;
            position: absolute;
            width: 100%;
            height: 100%;
        }
    </style>
</head>

<body onunload="FS.syncfs(false, function (err) {})">
    <canvas id="canvas"></canvas>
    <script>
        var Module = {
            'locateFile': function (path, prefix) {
                if (path.endsWith(".data")) {
                    return prefix + "deps/" + path;
                }
                return prefix + path;
            },
            'canvas': document.getElementById('canvas'),
            'preRun': [function () {
                FS.mkdir("/ruggrogue");
                FS.mount(IDBFS, {}, "/ruggrogue");
                FS.syncfs(true, function (err) {});
            }],
        };
    </script>
    <script src="ruggrogue.js"></script>
</body>

</html>