In this laravel we learn how to resolve cores issue with middleware with simple example validation by anil sidhu in Hindi Language . error is like has been blocked by CORS policy: Request header field content-type is not allowed by Access-Control-Allow-Headers in preflight response. Link for playlist Link for code and steps Make Middlware Write code for resolve cors issue Apply global Middlware react js in hindi: Checkout and subscribe our new channel for technical news