Windblocker behind or in front

I have just bought a windblocker, the black mesh type to fit with my style bars. My question is is there a right or wrong side to fit the blocker ie in front or behind the bars.
Thanks

Hi, you have probably seen my glass windblocker, and that it is fastened to the rear of the Style Bar, but that was to make sure it didn’t interfere with the distance the seats could be pushed back. But after saying that if yours is a fabric type of windblocker, by fastening it to the rear of the Style Bar the back draught will tend to want to keep it against the Style Bar, I think. You need to try it in both positions if this doesn’t mean drilling holes anywhere. If it does you could use those Electrical wire ties to fasten it temporally.