nelmio_cors: defaults: allow_credentials: false allow_origin: [] # Allow Hot Reloading CORS when@dev: nelmio_cors: defaults: origin_regex: false allow_origin: [ 'http://localhost:3000' ] allow_headers: ['Content-Type', "X-Requested-With"] allow_methods: [ 'POST', 'PUT', 'GET', 'DELETE' ] skip_same_as_origin: true