Excellent work Graham! Thanks for the app.
I first tried it browsing my laptop with my phone connected to my home wifi and the page load speeds were impressive. Unfortunately when I subsequently tried turning off the wifi on the phone and went to Edge, the pages would not load at all. However, the browser would simply hang instead of going to an "unavailable" page.
I tried stopping and restarting both the adb forward and the proxy app on the phone after switching to Edge, but with the same results.
I am in the Houston area. Anyone else here had success with Edge tethering? Even a slim chance there is packet sniffing going on to find headers that the network could use to identify tethering and block?