Redirecting to target URL.    <script type="text/javascript">
    (function () {
        var old_hash_map = {"bGSBHrm7b3wsMTNV35bICet1upbfg5xm":"4h-oM9atRhPQTzEs2eW31ZU1Z6RoUKTk","oVTpioMkiESM7-2VclKJSb49uH-xI700":"o9uZttR0PWtERopHUjQ-IHWm6gtc65Uy","LGzhJtTXIWBrGf_e7pO5Lou9dtlX43eO":"LTepLzwBTUn30_LFXbKEk7oiQZbHd1_2","s5186PSCaLNLH6KykEzLIdvQFrRhd4LM":"OD9-JJU9YWcr4C3ym69_Wfdp6kgl7q6T","jD-uQXTCnLvP4VGNsQ3cxmwPuDJgzICX":"-Y0CW6V17aguzdtgh5sRhaWruGy_CjvH","mxDieP5dZ902kebUPzgEBopQyRKAUKNF":"BgCdcqB5PzCLt8TGOr71awlopYGURDKE"};
        var url_parts = location.hash.split('lessons/');
        var new_target = '';
        if( url_parts.length > 1 ){
            for (var k in old_hash_map) {
                if (k == url_parts[1] ){
                    new_target = old_hash_map[k];
                    break;
                }
            }
            console.log('new-target: '+new_target);
            if( new_target ){
                location.assign(location.protocol+'//'+location.hostname+ '/course2/#/lessons/'+ new_target);
            }else{
                location.assign(location.protocol+'//'+location.hostname+ '/course2/');
            }
        }
    })();
</script>