Draw.io plugin "Embed existing diagrams" always links to viewer.diagrams.net

Question

We are operating Confluence and Draw.io in an airgapped environment.

* Confluence URL: confluence.example.com
* Draw.io URL: drawio.example.com

Users create diagrams in Draw.io and embed them into Confluence pages using the "Embed existing diagrams" feature of the Draw.io plugin. However, when users click on the embedded diagrams, they are always redirected to viewer.diagrams.net.

Since our environment is airgapped, users cannot access viewer.diagrams.net.

Is there a way to change this URL so that embedded diagrams open in drawio.example.com instead of viewer.diagrams.net?

Any guidance would be greatly appreciated. Thanks!

Bastian Schmitt -drawio Diagrams- · Answer

Hi @lunalcni ,

we do provide the service to embed diagrams that have been created in the draw.io standalone tool. As you describe in your inquiry that your Confluence environment is airgapped, I guess you like to avoid external links entirely over time, so I like to also add that you can easily export draw.io diagrams from the standalone service to the Confluence app. Simply export the diagram within the standalone service (as a .XML file), insert the draw.io diagram macro in Confluence and drag&drop the XML on a blank canvas. Your diagram will now live inside of Confluence, which also enables you to build up a revision history and keep all future changes within the Atlassian ecosystem :)

Best,
Bastian

Tomislav Tobijas · Answer

Hi @lunalcni ,

I'd say that you would probably need to talk with your networking team and maybe make an exception for this external link viewer.diagrams.net.

Not sure if you can set the viewer URL to redirect users to your internal instance. As this (if possible) probably requires some additional infrastructure changes, I'd recommend reaching out to the vendor support team and checking it out with them: draw.io Service Desk

Cheers,
Tobi