lynx and groups.io?

Hi folks,
Previously I had no issues using lynx with groups.io, especially given they 
claim to be mobile friendly.
However recently when I try logging in, I get a
"you must enter a password" error, even though I am typing a password in 
the field.
Is there a setting that can influence how sites realize you are typing in 
a low graphics environment?
my thought is the expectation  of a tap which would be new, but asking the 
experts.
thanks,
Karen