When I try to call web services from Postman, I don't have a problem I can get responses without problem. But when I try to call Zoho web services from my web application I have a CORS problem.

For local development I download a Chrome extension for prevent from CORS which is worked. But this time I'm getting 401 error with this message: Cross-Origin Request Blocked: Access-Control-Allow-Origin-Header is not present

I also search related topics in Zoho Help but they didn't work for me. Also I tried workarounds such as adding header for request which is also didn't work for my case. Could you help me about it ?