Description

When editing a post in "post-only" mode and the post title is focused then shift+tab doesn’t allow navigating out of the canvas. This happens in Gutenberg trunk and 6.8 beta1 whereas in 6.7 it doesn’t. In 6.7 it takes two-steps to get out of the canvas and that may not be ideal but at least it’s possible.

The expectation is that the "Options" button is focused when pressing shift+tab from the post title.

Step-by-step reproduction instructions

1. Open a post in "post-only" view
2. Move focus into the post title
3. Press shift+tab repeatedly
4. Confirm that it’s not possible to navigate out of the canvas

Screenshots, screen recording, code snippet

Environment info

• WP 6.7.2 with Gutenberg plugin from trunk or WP 6.8 beta1
• Chrome
• macOS

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure