If a Canvas page built using DesignPLUS is imported into an instance that does not have DesignPLUS installed, the page will show Vanilla HTML.
Vanilla HTML
The Vanilla HTML appears in the Canvas Commons and for users who do not have DesignPLUS installed because they do not have the necessary CSS and JavaScript in their Canvas Instance for DesignPLUS available to Cidi Labs customers.
To see how the content appears without DesignPLUS, try appending ?global_includes=0 to the end of the content URL. Adding this to the end of the URL will remove the CSS and JavaScript in your Canvas Theme.
Here are a couple of examples:
https://cidilabs.instructure.com/courses/123/pages/my-page?global_includes=0
https://cidilabs.instructure.com/courses/123/assignments/1234?global_includes=0