Is there official documentation about Draw.io diagram preview limitations in Wiki.js edit mode?

[pradeep-deriv]

Hi Wiki.js team,

I've been using the Draw.io integration with Wiki.js (version: 2.5.308 ), and I've noticed that diagrams display perfectly in both "View" mode and in the Draw.io editor, but in the Wiki.js "edit" mode (side-by-side page editor), the diagram preview is often broken, incomplete, or inaccurate. This happens even with all relevant security/sanitization settings set to allow full Draw.io support.

After searching the documentation, FAQ, issues, and forums, I couldn't find any official confirmation about this limitation. This makes it difficult to answer questions from my team, since we're not sure if it's a bug, a limitation, or a configuration issue.

Can you confirm if the edit mode diagram preview is known to be limited or not fully rendered?
And if so, could you please add a note to the Draw.io module documentation or FAQ about this, so other users are not confused?

Thank you for clarifying this—it would be extremely helpful for users and site admins alike!