When visiting https://mysupport.apple.com, it prompts me to sign in with an AppleID via https://idmsa.apple.com/IDMSWebAuth/signin?appIdKey=d7abc4ccb9b9f72d2f98c8d82fb9948668d09380a40c0fa64007a906a7502b4f&path=/?selectedLocale=en_US&language=US-EN .
I can open the 1Password extension via the share menu and it shows my apple ids. However, if I select one, it does not auto fill the username and password. I currently workaround this via copy and paste.
This also happens with the built in browser in 1Password.
These saved logins work fine on the same site using the Mac Safari extension.
1Password Version: 6.8.1
Extension Version: Not Provided
OS Version: 11.0 (15A5370a)
Sync Type: 1password Family