No Access-Control-Allow-Origin header is present on the requested resource

Question

I want to access information from same domain but with different port number, To allow this I am adding Access-Control-Allow-Origin with the response header.

Answer 1

I find the solution in spring.io,like this:

    response.setHeader("Access-Control-Allow-Origin", "*");
    response.setHeader("Access-Control-Allow-Methods", "POST, GET, OPTIONS, DELETE");
    response.setHeader("Access-Control-Max-Age", "3600");
    response.setHeader("Access-Control-Allow-Headers", "x-requested-with");