We have a widget that saves service tickets to C4C uisng oData web services.
The widget display a form to get input on a ticket (aka issue). The oData retrievel services work since the category dropdown values are filled.
When the user clicks to Submit the ticket, we get the 403 error - as shown below in browser developer console.

C4C odata is using basic authentication.
Appreciate any tips on solving the important issue.