Both in my local and deployed version of the app, I encounter CORS errors but not always and not on each request, it frequently happens on the POST requests, sometimes on the GET requests, after many refreshes or cleaning cache it might work, sometimes after leaving it for some time it starts to work,

The weird thing is that in the backend logs for all of these requests have 200 status, but browser blocks them. Also the same urls requested with curls return correct headers, but not in browser.