When unauthenticated users try to submit a public catalog item in Service Portal, a 400 Bad Request error occurs and they are unable to submit. This issue is due to AngularProcessor authentication restrictions.
Steps to Reproduce
Open any catalog item, for example an iPhone 6S [ /sp?id=sc_cat_item&sys_id=d0b15e33d7033100a9ad1e173e24d49e ].
For more information, see the product documentation topic Service catalog items.
- Make the item public.
Go to the Service Portal page (sc_cat_item) and make this page public.
Make any widgets associated with the sc_cat_item page public as well.
Open the item in an incognito window [ /sp?id=sc_cat_item&sys_id=d0b15e33d7033100a9ad1e173e24d49e ].
Note that although the catalog Item is public, it will not allow you to submit the item.
Related Problem: PRB854474