(NodeJS, SPA) Validation message not showing on localhost target but IS showing in wappler preview

Wappler Version : 3.3.3
Operating System : W10

Expected behavior

What do you think should happen?

Validation error should show in form after submitting

Actual behavior

What actually happens?

Nothing shows. In console this error shows:

dmxAppConnect.js:7 Uncaught TypeError: dmx.validate.setErrorMessage is not a function
    at n._done (dmxAppConnect.js:7)
    at n.onload (dmxAppConnect.js:7)

See video:

How to reproduce

1. Create form and add server connect action
2. Set up validation in server connect action
3. Test form in WAppler preview mode - should show validation error message
4. Test form on localhost target (docker) - doesn’t show validation error message