2 years has passed and still no answer nor solution?
I enter https://hbogo.pl/
and login form is an iframe with src https://gateway.hbogo.eu/..
. No matter if I save credentials for hbogo.pl or gateway.hbogo.eu domain (default as saved by LastPass), LastPass can't fill the fields. In inputs it shows correct value (I have 2 set of credentials, it shows "2"), but in the menu there are no matches and even if I click on magnifying glass and search hbo and click FILL, inputs are not filled.
Is there no solution to that?