AJAX calls on mobile do not work after update to 1.4.17

AJAX calls on desktops and mobile worked fine till yesterday. Today, after Hestia update to 1.4.17, AJAX calls do not work on mobiles. On desktops they are OK.
How to fix?
Thank you very much :blush:

There was a small bug in 1.4.15 with Apache2 + Nginx and Json how ever it should be patched.

If you have Nginx + Apache2 running try refreshing the cache or restart nginx and Apache2…

If caching template is active clear the cache…

Thank you eris.
Sorry but it was a false alarm. The problem happened only with one problematic user.
I apologize :mask: