Error Creating a PATCH REST API service method from a Fusion App Visual Builder Extension (CORS?)

Summary: I have a Fusion App Visual Builder extension that retrieves the values a specific Value Set Value from Fusion using a delivered REST API. I want to use the REST API but for updating one of the values from that list, but I'm getting an error message when I execute it within Fusion (works fine from Postman). I also was successful using a GET services from within Fusion. Issue seems to be with the Updates (Patch method).

Content (please ensure you mask any confidential information):

When I tried to use the PATCH method of the same service I used a GET, I got the following error message: