Refresh not working for camera widget

I am trying to get a traffic camera to refresh, but refresh causes HAD to throw an error every time I uncomment it. I just updated HA and HAD.

traffic1:
    widget_type: camera
    entity_picture: https://video.dot.state.mn.us/video/image/metro/C421
	refresh: 10

I figured it out by looking through some examples. Turns out I was missing the frame_style.

This works now:

traffic1:
    widget_type: camera
    refresh: 10
    frame_style: ""
    entity_picture: https://video.dot.state.mn.us/video/image/metro/C421