Cannot POST cross domain from edgex-ui

[xuexiqiangzhe]

Hello,
I want to post a rule to the rule engine in JS interface.
Edgex UI is at http://127.0.0.1:4000
The rule engine runs at http://127.0.0.1:48075

The code in JS is following,jsonObj is what I want to POST to rule engine.

 $.ajax({
            url: 'http://127.0.0.1:48075/rules',
            type: 'POST',
			contentType: "application/json",
			data: JSON.stringify(jsonObj),
			crossDomain:true,
			//dataType:'jsonp',
            success: function(){
                console.log("make rule successfully");
            },
            error: function(){
				console.log(“make rule failed");
            }

But,The developer mode of browser shows:

Request Method: OPTIONS
Status Code: 405 Method Not Allowed

Access to XMLHttpRequest at 'http://127.0.0.1:48075/rules' from origin 'http://127.0.0.1:4000' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
VM18:745 make rule failed
jquery.min.js:2 POST http://127.0.0.1:48075/rules net::ERR_FAILED

Thank you!

[jinfahua]

Done & close the issue.