Show layout page by webview from sidebar with kiosk

Setup, Configuration and Use Beginners
1

I created a layout page with

config:
  label: Sonos bediening
  sidebar: false
blocks:
  - component: oh-block
    config: {}
    slots:
      default: []
masonry:
  - component: oh-masonry
    config: {}
    slots:
      default:
        - component: widget:sonos_coordinator
          config: {}
grid: []
canvas: []

and call this from a sitemap

        Group item=SonosControl icon="living_24dp" label= "Sonos bediening" {
            Webview url="http://192.168.100.50:8080/page/page_06de149539?kiosk=true" height=18        }

This works on my laptop what means I don’t see the label and the hamburger menu (kiosk=true) but I can’t get the same result on my android phone. Any idea?