0
In the page editor modal, the header banner is broken (all white)

Issue Summary
When I go to the page editor modal from Course Setup > Content and click Edit, the course banner should display at the top of the page. Currently, the banner does not show and instead, is showing a white block where the banner should be.
Core functionality is not impaired.
Steps to recreate
- Go to Course Setup > Content
- Navigate to a page and click Edit
- This will bring up the pop-out modal page editor
- The course banner section will be blank/white
- This is occurring in any course