Weird navigation in Vaadin 23+ demos

[javier-godoy]

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Steps to reproduce

1. Open 23 staging demo site https://addonsv23-staging.flowingcode.com
2. Go to Orgchart demo
3. Click the Export button
4. Open the side menu and go to another demo (e.g. error-window)

Observed behavior

The URL is https://addonsv23-staging.flowingcode.com/orgchart/error-window

Expected behavior

The URL should be https://addonsv23-staging.flowingcode.com/error-window

Observations

It does not happen if you open https://addonsv23-staging.flowingcode.com/orgchart/drag-and-drop instead of steps 1 and 2 above.

[paodb]

I have done some local testing and when clicking the orgchart export button I see this exception in browser console:

Need to investigate more.