spring:
  cloud:
    gateway:
      default-filters:
        - DedupeResponseHeader=Access-Control-Allow-Origin Access-Control-Allow-Credentials, RETAIN_UNIQUE
      globalcors:
        cors-configurations:
          '[/**]':
            allowed-methods: "*"
            allowed-headers: "*"
            allow-credentials: true
            allowed-origin-patterns: "*"

DedupeResponseHeader=Access-Control-Allow-Origin Access-Control-Allow-Credentials, RETAIN_UNIQUEThe purpose of adding is to ensure that if the background returns cross-domain related headers, the gateway will not be added, otherwise it may cause the browser to report an error and the service cross-domain settings will not take effect.