AJAX “POST” not Working? Works as a “GET” (php/MySQL)

Is this a bug???

See below: I am trying to make a simple two value post to my SQL database. Below is the code that I have taken from a past tutorial and sample file that was posted. Can someone explain why this is not posting? (It IS actually posting but only as a a GET), but it is designated in the AJAX dialogue as a POST. I would rather the POST work for security :-)

Check the browser console for any errors regarding the request. Press F12 while the preview window has focus to bring up the browser's console.

Make sure your server includes Access-Control-Allow-Origin: * among the response headers for any of the HTTP request methods (Ej. POST)

Unless your C3 application and your server are in the same domain, the request from C3 will be cross origin and will be blocked by the browser, unless the server allows it of course.

BTW - it only works in the php page as a “GET”… “POST” still is not working. (also - they are on the same domain.)