Hello,

I have cloned your code to my ubuntu 16.04 running Ruby 2.3.3 with rails 5.0.1.

Everything works except autocomplete. I got a 500 Internal Server Error.

The console in Chrome browser showed that it got a stop at line 9537 of Jquery3, It stops at the same line no mater Jquery, Jquery2, or Jquery3 

The line shows the following code as,

xhr.send( options.hasContent && options.data || null );

Any hints for me?

Thanks in advance!