Screenshots

Version

master branch

Describe the bug

When an attachment is being rendered without any renderer, an error box (a.k.a. red box) should show up.

Instead, it blanked out with a JavaScript error in the console.

Steps to reproduce

1. Go to 01.a.full-bundle
2. Type github:sample-repository

Expected behavior

A red box to show up and say "No renderer for this attachment".

Additional context

In recent save/restore scroll position PR, we modified the createXxxRenderer and missed importing React.

[Bug]