Description

As this E2E test shows, changes made in the editor should be reflected in the preview without you having to hit the save button.

However, as recent E2E test failures show, it seems this no longer works as expected.

Example: https://github.com/WordPress/gutenberg/actions/runs/13635917377/job/38140477779?pr=69395

This might be the core problem.

Step-by-step reproduction instructions

• Open a post.
• Update the title and/or content.
• Do not click the Save button.
• Click the "View" toggle button.
• Click "Preview in new tab".
• ✅WordPress 6.7: Updates made in the editor will be reflected in the preview.
• ❌WordPress nightly: Updates made in the editor will NOT be reflected in the preview.

If you want to run the e2e tests that are failing:

npm run test:e2e test/e2e/specs/editor/various/preview.spec.js

Screenshots, screen recording, code snippet

WordPress 6.7

https://playground.wordpress.net/?wp=6.7

WordPress nightly (6.8-alpha-59921)

Environment info

No response

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