Can't make web services calls to other domine

Development
1

I want to make an HTTP call to one more application which is runnig in 3000 port

but it gives me Origin is not allowed by Access-Control-Allow-Origin, error

what should it do ?? plz help

2

See https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS for details about CORS.