ha-floorplan / floor3d-card fails to load in HA 2025.11 due to unresolved "lit" module imports

[acognard]

Dear all, i am facing an issue.

ha-floorplan / floor3d-card fails to load in HA 2025.11 due to unresolved "lit" module imports

Description:
I suppose after updating Home Assistant to 2025.11 (frontend.js.modern.202511050), ha-floorplan (floor3D-card) fails to load. The browser console shows multiple errors related to unresolved ES module specifiers for "lit" and @lit/reactive-element:

Uncaught TypeError: Failed to resolve module specifier "lit". Relative references must start with either "/", "./", or "../".
Uncaught TypeError: Failed to resolve module specifier "@lit/reactive-element/decorators/custom-element.js".

Environment:

• Home Assistant: 2025.11
• Browser: Chrome 143.0.0.0 on Windows 10
• ha-floorplan version: 1.1.3
• HACS frontend resources include:
  • /hacsfiles/ha-floorplan/floorplan.js
  • /local/lib/lit/index.js (optional workaround attempted)

Steps to Reproduce:

1. Open any Lovelace dashboard using the ha-floorplan or floor3d-card.
2. The page fails to load, and the console logs the errors above.

Observed Behavior:

• Dashboard does not render.
• Console shows unresolved module specifier errors for "lit" and @lit/reactive-element.
• Other HACS cards load correctly.

Expected Behavior:

• ha-floorplan / floor3d-card should load without errors.
• All module dependencies should resolve correctly via either HACS or local /www resources.

Temporary Workarounds Attempted:

• Placing lit and lit/decorators.js in /config/www/lib/lit/ and adding them as module resources in Lovelace.
• Clearing HA frontend cache and browser cache.

Notes:

• The issue seems specific to ha-floorplan / 3D floorplan cards that directly import "lit" or @lit/reactive-element.
• Likely related to changes in HA’s frontend module resolution in 2025.11.

Request:

• Guidance or patch for ha-floorplan / floor3d-card to correctly load ES modules in HA 2025.11.
• Confirmation whether this should be fixed in HACS, the card repository, or HA itself.

[exetico]

Why do you mention ‘floor3d-card’? This feels like 3D slop.

Please let us know if it’s working on previous HA releases.

‘ha-floorplan’ work just fine here on 2025.12.1.

Did you hit the wrong repo, with your AI agent?