How to resolve `Access Control Allow Origin` Error
Prevent CORS Policy Issues in PHP: Solving 'Access-Control-Allow-Origin' Errors for Web Developers
Failed to load http://localhost/api/index.php: No 'Access-Control-Allow- Origin' header is present on the requested resource. Origin 'http://localhost:8100' is therefore not allowed access. core.js:1673 ERROR HttpErrorResponse {headers: HttpHeaders ...
The 'Access-Control-Allow-Origin' header contains multiple values '*, http://localhost:3000', but only one is allowed. · Issue #440 · fruitcake/laravel-cors · GitHub