Finally I’ve found the problem. In my wordpress I have the form inserted using the shortcode. But also I’m using SPOTS plugin, and the shortcode is inserted in one SPOT.
SPOTS has a view cache enabled by default. The form shortcode works perfectly when I’m logged (because the SPOTS cache is disabled when the editor is logged 😛 ), but the process doesn’t work when the cache is enabled on not logged sessions because the SPOT cache save the form view but the requests to do_action for insert Ninja-forms JavaScript and CSS aren’t called.
Simply go to the configuration of SPOTS, and set 0 to cache.
If you have using another custom posts plugin, be carefull with the cache 😀
Hi, I only can reproduce this bug changing from my developer local webserver to my Ubuntu Server. Seems like it is neccessary some apache header or MIME header.
If I found the solution, I will post it.
