No codeintel in browser extension, Uncaught Error: File actions not found. Make sure you aren't trying to create a toolbar mount for a code snippet that shouldn't have one

Created by: felixfbecker

I don't get any codeintel when reviewing https://github.com/sourcegraph/sourcegraph/pull/919/files

Version 2.0.6, Chrome, "use extensions" OFF

Error in console:

Uncaught Error: File actions not found. Make sure you aren't trying to create a toolbar mount for a code snippet that shouldn't have one