Customer unable to search Knowledge Based article from Customer Portal

Summary

Customer unable to search knowledge based article from Customer Portal eventhough the permission was open for any active user without confluence licence.

Customer Impact

Customer unable to search KB from Customer Portal. If they have direct link , they can open it.

Environment

Cloud

Steps to Reproduce

1. Link JSD project with Confluence space.
2. The permission , set to Everyone with access to your service desk can read articles without a Confluence license. This option is best if you want to share knowledge base articles with your customers.
3. Then , login customer portal as customer (without license)
4. Try to search the KB

Expected Results

Customer should be able to search the KB

Actual Results

Customer unable to search the KB. Only agent can search for the KB.

From Console , there's error :-

Error: undefined missing confluence/api/navigator-context

Notes

Agent able to search the KB.

Workaround

No workaround