I am developing a spring boot application. In which it has API-Gateway and three microservices. When I call API from UI it throws an error of CORS.
Error:
Access Control Allow Origin header contains multiple values but only one is allowed
I already configured cors in application.yml in API-Gateway.
spring:
application:
name: api-gateway
cache:
type: redis
redis:
host: 'http://localhost'
port: 6379
cloud:
gateway:
globalcors:
corsConfigurations:
'[/**]':
allowedOrigins: "*"
allowedMethods: "*"
allowedHeaders: "*"
eureka:
client:
eureka-server-d-n-s-name: my.dns
eureka-service-url-Context: eureka
fetch-registry: false
region: ap-south-1b
register-with-eureka: false
use-dns-for-fetching-service-urls: true
datacenter: cloud
ribbon:
eureka:
enabled: false
server:
port: 8765
zuul:
routes:
order-service:
url: 'http://localhost:8088'
product-service:
url: 'http://localhost:8084'
user-service:
url: 'http://localhost:8082'
Along with that, I have configured CORS in each microservices. Instead of calling API via API-Gateway if I call directly to microservice, it is working fine.