XMLHttpRequest cannot load https://apps.ionic.io/api/v1/app/{{appId}}/users/identify. Request header field X-Auth-Token is not allowed by Access-Control-Allow-Headers

I am getting this error when I try to access the app via phone. What changes need to be made to config?

I am getting the same error and I have dev_push set to true. I would expect calls from $ionicUser and $ionicPush to go through the proxy when dev_push is set to true but it doesn’t look like that is happening. Any advice?