To be honest not tried it yet......
But did not expect any issues as I looked at tear down videos and did not see any sensors above the gimbal they were all at the back.
If you tried and failed there then I may have to move it also. Ummm
Yeah be careful - the front compass is under there. Monitoring the "sensor state" page for the compass in the app, I observed the back compass go totally out when I put the loc8tor near it (back end of the drone, on the top or near the back light), to the point where it generated a "compass interference" error and the drone wouldn't be able to fly.
Putting it where you have yours didn't do that and wasn't as bad as putting it at the back, however I did observe big changes in the compass noise reading when comparing the numbers with no loc8tor against those with it sat on the top front.
Strangely enough, the compass error/noise readings _decreased_ with it on the front when I tried, but that doesn't mean it would be OK since any change in the reading must mean the magnet in the tag is affecting the compass.
As I said, the change in readings was much less with the tag at the front than at the back, and you might be OK. Even if it seems good, possibly you'll decrease the compass SNR to the point where it'll be OK in magnetically clean areas but cause issues near power lines or metal objects etc which would have been within the tolerance had you not put the tag there.
In any case, at the least I would fly it cautiously the first couple of times keeping it somewhere that you're unlikely to lose it if it decides to go ATTI mode on you.