I've noticed that the login page for E.On (a large German / British energy firm) is broken.
You can get to the page here.
But, if you use 1Password's auto-fill (the browser extension) it fills in the data but doesn't change the "Continue" or "Log In" buttons from grey to red.
Basically if you add an extra character at the end of the username (and press backspace to remove it) then it works. The same trick is required for the password.
Obviously this is some weird anti-fill behaviour, much like an anti-copy and paste feature.
Is there any way that 1Password could fix this in the background (or implement the fix I described above)?
Edited to add: I'm using the 4.7.5 extension in Google Chrome; not 1Password X.