Issues loading the web app are typically caused by an extension like uBlock or NoScript. In order to use the web app, you'll need to disable these types of extensions to allow Hurdlr to run.

Click on the small uBlock icon in your omnibox, (very top right of your page, near the Chrome Menu icon), then tap the big blue circle-like symbol and it will then turn gray. Refresh the page and it should load properly.

Alternatively, you can add a site to your Whitelist by going to the uBlock extension, then clicking 'Options', 'Whitelist', 'add/delete', 'edit' a URL, 'Apply changes'.

Right click on the page, then open the NoScript menu. Add 'Allowing to web.hurdlr.com'.