on setting callback type to GET_USER_PROFILE_API when will the function trigger ?

For other developers who might run into this question, I have a CodePen here that shows how to set up user profiles. There are two views side by side reviewing the same document. The left and right sides have two different user profiles assigned and the event callbacks make it so that the user on each side can only select their own annotations.

NVM, I was previewing somewhere else. Maybe that's why it didn't work. Got it working after doing a previewFile