Online slider settings

Hi there, I’m having a bit of trouble with the “slider” style slider in PsychoJS.
I think the local version with the vertical bar is great and I’d like to get it working online.
I have tried looking through @wakecarter 's crib sheet and adding experimentInit; to a JS code component.
I would guess that it’s possible to adjust the settings using a code component that updates the format of the slider (at least the red bar would need to be updated on each frame).
Here is an experiment that contains a “rating” style slider, then a “slider” style slider:

It should run online and locally, with no option to end.

Here’s an image of the local slider:

Here’s how it appears online (example version linked above looks a little different):