The same Console error was reported T136655: Full screen maps are broken on mobile.
- On https://en.wikipedia.beta.wmflabs.org/w/index.php?title=Map start editing mapframe in VE.
- Click 'Edit layers' - the Console will display the following error:
Uncaught TypeError: Cannot read property 'lat' of null
at Object.project (load.php?debug=false&lang=en&modules=mapbox&skin=vector&version=0ba8w4y:26)
at Object.latLngToPoint (load.php?debug=false&lang=en&modules=mapbox&skin=vector&version=0ba8w4y:26)
at NewClass.project (load.php?debug=false&lang=en&modules=mapbox&skin=vector&version=0ba8w4y:41)
at NewClass._getMiddleLatLng (<anonymous>:28:821)
at NewClass._createMiddleMarker (<anonymous>:27:563)
at NewClass._initMarkers (<anonymous>:24:650)
at NewClass.addHooks (<anonymous>:23:838)
at <anonymous>:22:971
at NewClass._eachVertexHandler (<anonymous>:22:862)
at NewClass.addHooks (<anonymous>:22:926)- Clicking 'Edit layers' options 'Save' and 'Cancel' do not have any effect.
No GeoJSON errors are displayed.
