@phw I believe the plug needs to look like this:
plugs: gnome-3-26-1604: interface: content content: gnome-3-26-1604 default-provider: gnome-3-26-1604 target: gnome-platform
Before it’s auto-connected, you can manually establish the interface with:
snap connect foo:gnome-3-26-1604 gnome-3-26-1604:gnome-3-26-1604
Once you push the snap to the store and install from there, that command is unnecessary as the connection will be automatically established.
@kenvandine Is the above right?