How to fix CORS error when calling rest api in ajax in external site

[maryam yazdani]

In my project, user can ask question, now I want to display some articles in my confluence space based on what user is typing. when I call confluence rest api in ajax in my project, I get CORS error but when I use postman I get result.

I search long time and read all documents but I don't get any result.

I am really appreciated, if you help me that how can I call rest api in my project.