can not navigate to the cross-site Iframe by tab key with Full Keyboard Access Mode
Open the Full Keyboard Access in iPhone settings
connect a keyboard
open this test url https://future-web-html.azurewebsites.net/all.html
use Tab key for navigation
Like this image.
we can not navigate into the cross-site iframe (do not touch or click the web page, use the keyboard only).
is it a bug or as designed?