I have tried the HTTPSRequest sketch as a guideline, along with others, and I have never been able to establish a connection. The ESP8266 can connect to other https websites, but as soon as I try to make simple substitutions for liftie.info, the connect ceases. I've tried examples with and without the fingerprint, but it doesn't even appear to get that far before I get errors.
Is there the possibility that the .info domain is causing some sort of confusion?
Thanks for any help!