GlideAjax in Catalog clien script don't work with non-admin user

[Matteo4]

I created a catalog client script onLoad that call a script include using GlideAjax but on portal when i open the item, with admin the ajax call work, with other user (without role) don't work. I inserted some log on script include and with no-admin user the script include is not execute.

This is the call:

This is the called function:

This is the result with admin:

This is the result without admin:

-----------------------------------EDIT-----------------------------------------

My script include:

My catalog client script:

Anyone can help?

Thanks

[Sophia10]

I had the exact same problem and it worked when I added suggested code, thank you for your help!