Dynamically resize window based on content

[JacksStuff0905]

I have just started using eww and I wanted to show a simple widget that resizes to fit the label that is inside. This is the eww.yuck file for doing that:

(defwidget audio_layout []
  (box
    :hexpand true
    :vexpand true
    (label :text "Volume:")))

(defwindow audio
  :monitor 0 ;; Optional for X11
  :hexpand true
  :vexpand true
  (audio_layout))

The problem is that the widget shows as a tiny box containing only ... (which I'm guessing is a truncated version of the label) and the only way to fix it is to set a constant width with the :geometry property or via CSS.

Is this the intended behavior or am I missing something?