Looks like KeyDown listeners are not being translated correctly to JavaScript when using FWT.

Label label := Label { text = "Hello!"; halign=Halign.center }
Window window := Window
{
  size = Size(800,600)
  title = "Test"
  onKeyDown.add |Event event| 
  {
    label.text = "Received key: $event"
  }
  label,
}

The above will correctly render the label in both desktop mode and in JavaScript. However, in the desktop environment, the onKeyDown trigger will be processed, whereas in JS it seems to be ignored.

Promoted to ticket #1091 and assigned to andy

I would like to note that you already have fixed this key event ignoring problem.

Ticket resolved in 1.0.60

Thanks jessevdam