Post previews show black nav bar after user visits Unsupport Block Editor on Jetpack-connected sites #15100
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Description
Expected behavior
A black nav bar shouldn't be shown in post previews.
Actual behavior
Post previews sometimes show an unwanted black navigation bar. It looks like this happens after the user has used the Unsupported Block Editor (note the black bar with the various buttons such as profile icon and plus button).
Steps to reproduce the behavior
On a self-hosted site connected via Jetpack:
- Open a post containing an unsupported block (e.g. an Audio block at time of writing)
- Tap the (?) option to open the Unsupported Block Editor (UBE)
- Once the UBE is open, close it
- Close the post and tap the View button on the post list screen to preview the post
- Notice the black nav bar at the top of the preview