Enable CORS or Pre flight requests at NodeJS
Cros Origin Resource Sharing This is how we can Enable CORS const app = express (); /** * Changes made to enable CORS */ const allowCORS = ( req , res , next ) => { res . header ( 'Access-Control-Allow-Origin' , '*' ); //Method Supported res . header ( 'Access-Control-Allow-Methods' , 'GET,PUT,POST,DELETE' ); //If you have additional Headers which needed to be allowed res . header ( 'Access-Control-Allow-Headers' , 'Content-Type, Authorization, token' ); // intercept OPTIONS method, as all the preflight request first send the options method, and based // on the success, it will further allows the actual call. if ( 'OPTIONS' == req . method ) { res .sendStatus( 200 ); } else { next ();} }; //Allow cross domain. ap...