Front seat dog guard

[Taff7996]

Looking for a way to stop my cocker spaniel from going into the front, looking at front seat dog guard, what do you use

 

[Hotel California]

Ours does not do that often but if we leave her allone in the Cali we just put something in between the gap between the front seats .
I have a net made out bungee cord . But sometimes just hanging up raincoat does the trick for us...
While driving she is in a foldable bench (or a seatbelt harnas ) so no problem there