I have just upgraded an app to ionic4. As far as I understand, a new webview is used in Cordova for ios which enforces CORS. So far so good.
I was surprised though that ios is sending:
I had expected http://localhost. It’s not really a problem since I have control over the server and added it to the allowed origins. I am wondering however what the reason for this url is? I have ran the same app on platforms android and browser. And there it sends http://localhost as expected.
Here is a capture of the traffic: