Mule4 - How to skip adding port to the http requestor - to resolve 503 service unavailable
In Mule4 port is appended automatically 80 for http and 443 for https when using http requestor component. if the backend api is not accepting port as part of the url, backend endpoint may return 503 service unavailable. To resolve the issue, try adding "host" header to the http requestor, the value for the host header is endpoint host name, when added mulesoft will remove adding port to the http requestor call. Example: if the endpoint url is "api.abc.com/api" then add "host" header value as "api.abc.com"