Invalid hostname when running container

[tmaier]

I get the following error message, no matter which host name I am using

$ docker container run --rm mozilla/observatory-cli http://example.com 
observatory [ERROR] Unable to get result. Host:http://example.com Error:invalid-hostname.

[tmaier]

The issue seems to be the protocol http://

Consider to just handle this case or to give a meaningful error message

[kurtnico]

The issue seems to be the protocol http://

Consider to just handle this case or to give a meaningful error message

How did you solve that? I faced same issue when running with http or https and www or without www.