Issue with the extension running in devcontainer

[AT-Education]

Trying to open an excallidraw file in devcontainer inside a github codespace.

Steps to reproduce:

• create a github codespace
• add devcontainer config file with extension such as: "customizations": { "vscode": { "extensions": [ "pomdtr.excalidraw-editor"] } }
• trying to open a excalidraw file: nothing happens
• checking extensionhost output, getting following error:

[game7]

Having similar issue. In my case I'm using devcontainer locally (no codespaces) and the extension has worked fine in the past, however if/when I open the project "in a unique volume" the plugin appears greyed out in the extension pane and excalidraw files are not recognized when opened

[XF-FW]

Same here.

2024-08-30 11:21:22.703 [info] Extension host started
2024-08-30 11:21:27.766 [info] ExtensionService#_doActivateExtension pomdtr.excalidraw-editor, startup: false, activationEvent: 'onCustomEditor:editor.excalidraw'
2024-08-30 11:21:27.837 [error] Activating extension pomdtr.excalidraw-editor failed due to an error:
2024-08-30 11:21:27.837 [error] Error: 
    at I.xb (https://assets.github.dev/stable/fee1edb8d6d72afddff41e5f71a671c73ed924b9/out/vs/workbench/api/worker/extensionHostWorker.js:111:56325)
    at async Promise.all (index 0)
    at async s.n (https://assets.github.dev/stable/fee1edb8d6d72afddff41e5f71a671c73ed924b9/out/vs/workbench/api/worker/extensionHostWorker.js:96:6410)
    at async s.m (https://assets.github.dev/stable/fee1edb8d6d72afddff41e5f71a671c73ed924b9/out/vs/workbench/api/worker/extensionHostWorker.js:96:6373)
    at async s.l (https://assets.github.dev/stable/fee1edb8d6d72afddff41e5f71a671c73ed924b9/out/vs/workbench/api/worker/extensionHostWorker.js:96:5830)
2024-08-30 11:21:30.923 [info] Eager extensions activated