CORS Helper

Users can set different return values to allow users to be granted access to specified resources from different source servers.
Users can customize the value of the HTTP response header

It should be noted that when Access-Control-Allow-Origin is set to "*", the identity certificate cannot be attached.
Of course you can specify a unique Origin such as http://localhost:3000

Instructions
After installing the plugin, click the icon in the upper right corner to enable "cross-source resource sharing".

Custom configuration
After installing the plugin, click the icon in the upper right corner and click "Customize" to enter the configuration page.

The "HTTP Response Header" page allows you to add custom Access-Control-* header information to the HTTP response header
"White List" page allows you to customize the website for applying rules