ESP8266 sketch and I just needed to update the fingerprint in the http.begin() argument

EX:
http.begin("https://192.168.1.12/test.html", "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38"
To update this just go to https://www.grc.com/fingerprints.htm and add the full url and use the code as the second argument in the http.begin() method.

from:

https://github.com/esp8266/Arduino/issues/3193

https://www.grc.com/fingerprints.htm