Keypad does not work on doors nor plays sound

[chsterz]

Here is the error:

TypeError: Cannot read properties of undefined (reading 'entries')
    at Proxy.initVariables (state.ts:49:48)
    at iframe_api.ts:38:18

I am running a fairly old Workadventure, ~Nov 2021

I debugged in a bit. It seems, that the WA.onInit()call returns undefined instead of a valid Promise.
This causes the catch block around it to directly fire and hinders the preparation of the Keypad.
The Keypad shows up, but no key-sounds are played nor the door opens like it did before (worked on 5th of Jan still, can confirm)

I tried forcing the version of scripting-api-extra to 1.1.1 which was available at 5th of Jan when it still worked, but it still gave the same error on my instance.

[gparant]

ping @moufmouf