SI: Viewset Affiliate & Category (drilldown) views don't work

[WillStrohl]

Describe the bug

When any of the following views are used with the Mandeeps Porto5 viewset, they don't work and instead throw JS exceptions.

Software Versions

• DNN: 09.06.01
• Hotcakes: 03.04.00

To Reproduce

Steps to reproduce the behavior:

1. Install DNN
2. Install the Porto 5.x theme
3. Install Hotcakes
4. Add sample products and categories
5. Enable the affiliate program.
6. Add a new page that's visible to everyone.
7. Add the Affiliate Registration module to this new page.
8. Add a new page that's visible to at least Registered Users.
9. Add the Affiliate Dashboard module to this new page.
10. In a new browser or incognito window, attempt to register as a new affiliate, filling in all fields except for the Referral Affiliate ID.

Steps to Reproduce the Behavior:

1. Follow steps 1 through 4 above.
2. In any instance of the category viewer module, configure it to use the drilldown view in module settings.

Expected behavior

The drilldown and affiliate views work without reporting JS exceptions.

Actual behavior

There are JS exceptions thrown in the developer console.

[WillStrohl]

As reported in support ticket # 5740, this is not limited to the Porto viewset.