For about a week, my favourite cafe chain had an expired WiFi security certificate, which the iPhone kindly warned me of. I did not accept the certificate. Yesterday, I ran into weird behaviour with the iPhone at one of the chain's cafes. I got out the strange state by clicking around a lot, in a manner that I thought was reasonable. I was able to access the internet, but I wondered whether the barrage of clicking managed to accept an expired certificate. I was not able to find a way to view the details of the certificate. Is there a way to do this?