Steps to reproduce
Nothing 
Your code does everything by itself. Just open Console in browser DevTools.
Expected result
Console without errors, I suppose.
Actual result
Lots and lots of errors about CORS.
Environment
Linux, Chrome 59.0.3071.109, Web-version.
Additional information
XMLHttpRequest cannot load https://dynlst.com/update. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'https://dynalist.io' is therefore not allowed access. The response had HTTP status code 502.
