I imagine everyone knows what cors is and what it is for. In a simple way and for example if you use nodejs and express for the management, enable it is like this
Dependency:
https://www.npmjs.com/package/cors
app.use (
cors ({
origin: "*",
... more
})
);
And for the problem of browser requests locally, it is only to install this extension of google chrome.
Name: Allow CORS: Access-Control-Allow-Origin
https://chrome.google.com/webstore/detail/allow-cors-access-control/lhobafahddgcelffkeicbaginigeejlf?hl=es
This allows you to enable and disable cros in local, and problem solved.