iOS 10.2 + Safari + Client Certificates crashes Safari Yesterday I updated my iPhone 6S to iOS 10.2, and now I cannot access web sites requiring client certificates. Safari prompts me for the client certificate to use but then immediately crashes. I tried with my iPad running iOS 10.0.1 and it works just fine. On my Mac / PC it works with any browser whatsoever.

Can someone else confirm this problem?
Ok. This clearly has something to do with StartSSL / WoSign (client) certificates.

Even though there is no error and Safari just crashes, everything works when I try self signed client certs or client certs from another root CA.

Very weird ...