Created attachment 308276 [details]
Screen shot of Password window... password entry missing
Can not automatically log in to regular sites. When accessing preferences/Passwords the entry space for the password is not visible.
By placing the Passwords window off to the side and then doing this entry a greyed out place for entering the passwords is visible. Clicking on the Password window renders the Password entry space invisible as shown in the screen shot.
Thank you for the report! We will continue to track it internally at Apple, as there is no fix to make on the WebKit side.
Created attachment 309937 [details]
Passwords screen shot
Both Safari and Safari Technical Preview correctly display password entry screen. Webkit is the exception.
Correct. The root cause is well understood.