Why am I getting a "Permission Denied" message when terminating a chat?

Environment

Chat Rules, Interfaces, Feedback, Surveys
Oracle B2C Service, All Versions

Issue

After a chat is completed, a survey should pop-up, however the following message is being presented instead:

Permission Denied
Cannot access web page from this interface.

Resolution

When this behavior occurs verify the configuration of chat rules. Check whether any of the defined chat rules are referencing a survey which is created on the main interface, but where the chat is coming from a secondary interface.

Because surveys are interface specific, the one that is referenced in a chat rule to pop-up when chat completes must exist on the same interface from which the chat is engaged.