I’m playing with the floorplan, and noticed something that makes it a bit cumbersome when setting up (read: constantly making small changes to the *.svg file).
A force-refresh of the browser (cmd + shift + R on macOS) that typically reloads images, etc., does not do so for the floorplan. I need to manually go to settings and delete cookies every time.
I am not sure of the reason but yes floorplan can be painful due to the caching. Worst was when it was in development and the actual ha-floorplan files were cached! Having said that as floorplans got larger, people like me asked for a caching option. So if you do the following you should find you can control whether the files are cached or not: