When posting a "-new" to add a record on a php site. The site needs to be added to the Trusted sites.
Operating system version
Windows 2003 Server
Description of the issue
We've created a site to order items, like a webshop. Users report that they can't order items. After research we found the issue. The server-side code is not executed until the site is added to the trusted sites. All the communication to the sharepoint server via PHP is working perfectly except the posting of a "-new". The confirmation page is nog executing the command properly. The record gets created but no data is inserted to the fields. It works on all tested mobile devices and on all internal computers. Only on external computers in some cases the code is not executed properly until the site on IP level is added to the trusted sites. Can anyone help us or guide us in the right direction?