The options for allowing cross-domain requests include the use of a proxy server or implementation of CORS.
Proxy server
If you configure a proxy server and direct all requests to that server, the proxy server can delegate specified requests to servers on other domains.
CORS
CORS is a mechanism supported by some browsers that allows a script to make requests to a domain other than the domain where the script originated. This option requires that the client request and server response conform to a specific format.