Good Evening,
I have a problem with my angular JS application. I´m developing a web application and I have a problem whe I try to call API REST. I have done several test with Oauth2, and I can´t get the token authorization…allway I get CORS policy deny.
Now I´m trying to send a simple list user request: https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1
I´m using Authorization JWT Token generated from your marketplace.zoom.us:
- Headers:
.set(‘Authorization’, "Bearer " + jwt)
.set(‘Content-Type’, ‘application/json’)
.set(‘Access-Control-Request-Method’, ‘GET’)
.set(‘Access-Control-Allow-Methods’, ‘GET, HEAD, POST, PUT, DELETE, OPTIONS, PATCH’)
.set(‘Access-Control-Request-Headers’, ‘access-control-allow-methods,authorization,content-type’);
I´m getting this error: “Access to XMLHttpRequest at ‘https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1’ from origin ‘https://localhost:4200’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: No ‘Access-Control-Allow-Origin’ header is present on the requested resource.”
If I install and enable Chrome Extension: Allow CORS: Access-Control-Allow-origin, I get this error “Access to XMLHttpRequest at ‘https://api.zoom.us/v2/users?status=active&page_size=30&page_number=1’ from origin ‘https://localhost:4200’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status”.
I need to use API Rest from my development environment with AngularJS. I don´t know if any can help me with this problem, because I don´t know how can avoid this CORS Policy problem. How can I use the API from Angular JS Project?
Maybe the problem is with “Origin” localhost, but I have tried a public domain with a proxy inverse and always get CORS policy deny. 
Or maybe is that I can´t use API from Client Server…just from APP Server ¿?
Thanks so much.
Best Regards.