Internet Proxy detection on IOS

Hi Guys

We have a Xamarin forms app, and its running fine under 3g and Wi-Fi.

But one of the companies has proxy in their Wi-Fi. We have make use of “Xamarin.Forms.Labs/Services/INetwork.cs” to detect data vs Wi-Fi but was not lucky enough to find a implementation of the “Proxy” detection. This is not a public app, therefor we need

1) if 3g – continue with 3g
2) if Wi-Fi check it has proxy or not ,
a. if no proxy continue,
b. if proxy found replace with the new WebProxy("proxy.myproxy.com", 8080)

Can someone please let me know how to implement (for the moment iOs is enough) the “HasProxy” ?

Thank you
Asanka