Wt

https://www.webtoolkit.eu/wt/doc/reference/html/overview.html#config_wthttpd
Point 10.3
It's just configure that properties on wt_config.xml:

  --https-listen arg
  --https-address arg
  --https-port arg (=443)
  --ssl-certificate arg
  --ssl-private-key arg
  --ssl-tmp-dh arg
  --ssl-enable-v3
  --ssl-client-verification arg (=none)
  --ssl-verify-depth arg (=1) 
  --ssl-ca-certificates arg
  --ssl-cipherlist arg
  --ssl-prefer-server-ciphers arg

Or instead you can also use a proxy to make the ssl termination and use the applications just on http.

Sorry, isn't on wt_config, it's on the arguments that you give to the application when run it