I always use Safari, seems to do fine.
Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Try:
1) Clearing history
2) Clearing cookies
3) Restart local machine
4) Restart local router
I did all that long before I posted.
After the certificate negotiation, the server isn't responding to the HTTP GET.