PHP:对飞行前请求的响应不会通过。我允许的起源

So I know there's a lot of CORS posts out there, and I'm just adding to them, but I can't find any with answers that help me out. So I'm building an angular 4 application that relies on my php api. Working locally it's fine, the moment I toss it up on the domain with the app at So I know there's a lot of CORS posts out there