CORS keeps blocking request during preflight on the browser
I'm trying to access my API from the browser but the request is blocked by CORS, with the error "Access to XMLHttpRequest at 'http://localhost/3001/auth/login/staff' from origin 'http://localhost:3000' 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."
I tried adding Access-Control-Allow-Origin to allow headers in Cors config but it's not working, I've tested the endpoint on Postman and it works, I'm attaching screenshots of my code(I don't know how to setup nestjs in code sandbox), here's the link to GitHub https://github.com/johnpatrick254/School-Management-System/ on client-webapp branch
Any assistance will be highly appreciated!
I tried adding Access-Control-Allow-Origin to allow headers in Cors config but it's not working, I've tested the endpoint on Postman and it works, I'm attaching screenshots of my code(I don't know how to setup nestjs in code sandbox), here's the link to GitHub https://github.com/johnpatrick254/School-Management-System/ on client-webapp branch
Any assistance will be highly appreciated!
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