WP-REST-Allow-All-CORS

The plugin will overide handle_preflight request, and will handle OPTIONS request.

Response headers are set to :

- Access-Control-Allow-Origin: \*"  
- Access-Control-Allow-Methods: POST, GET, OPTIONS, PUT, DELETE"
- Access-Control-Allow-Credentials: true"
- Access-Control-Allow-Headers: Origin, X-Requested-With, Content-Type, Accept, Authorization'