When front-end app calls the server-api app, then by default the server returns the request but browser intercepts that request and stops the client app from getting it.
So we get the below error in our browser:
Access to XMLHttpRequest at ‘http://localhost:8000/video’ from origin ‘https://localhost:5002’ has been blocked by CORS policy:
No ‘Access-Control-Allow-Origin’ header is present on the requested resource.
To solve it – we need to add – 'Access-Control-Allow-Origin': 'https://www.front-end-client-url.com'
Read more at –

When front-end app calls the server-api app, then by default the server returns the request but browser intercepts that request and stops the client app from getting it.
So we get the below error in our browser:
Access to XMLHttpRequest at ‘http://localhost:8000/video’ from origin ‘https://localhost:5002’ has been blocked by CORS policy:
No ‘Access-Control-Allow-Origin’ header is present on the requested resource.
To solve it – we need to add – 'Access-Control-Allow-Origin': 'https://www.front-end-client-url.com'
Read more at –