It is a HTTPS site.
I want to add a webclip to my iphone but it shows an annoying screenshot when not connected to vpn. On connecting it shows my webclip perfectly. Android adding to home screen works perfectly with/without vpn. On researching a lot and tearing apart my hair i found out that untrusted certificates in ios might be an issue. Could any help me as to how to add and trust my web app. Am i missing something? I am basically a novice so any help would be nice.