@tecdip I ran into the same problem, that the HavokPhysics instantiation was failing becaues of invalid URL (for the WASM file). I ended-up manually copying the HavokPhysics.wasm file into my output folder and then point the HavokPhysics instance to it like:
const havokInstance = await HavokPhysics({
locateFile: () => {
return 'path/to/your/HavokPhysics.wasm'
},
})
const havokPlugin = new HavokPlugin(true, havokInstance)
scene.enablePhysics(gravity, havokPlugin)
I found this workaround here Unable to load Havok plugin (error while loading .wasm file from browser) - #45 by dap