Problem using Firefox 44.02

[divitoDBA]

The following code returns an error when using Firefox (44.x and 45.0)

https://gist.github.com/divitoDBA/2668809f13895789abec

payload received is:

request failed jqXHR: {"readyState":0,"responseText":"","status":0,"statusText":"error"}

But the same code runs OK using Chrome (48.0.2564.116 m) and IExplorer (11.0.9600.17420).

Any idea why this restDB.io/Firefox issue arises ?