Dev.Opera — DOM Access Control Using Cross-Origin Resource SharingIntroductionWhat is CORS?How browsers make simple cross-origin requestsHow browsers make complex cross-origin requestsSending CORS response headersAccess-Control-Allow-OriginAccess-Control-Allow-MethodsAccess-Control-Allow-HeadersAccess-Control-Allow-CredentialsAccess-Control-Expose-HeadersAccess-Control-Max-AgeHow to set response headersConditional CORSLearn moreIntroductionSame-origin policies a
