it's nylon .. is it not ?
or even if it was poly.
the stuff's gonn'a burn.
consider though, the actual mass of it that you are using. it takes a vast area of it to make enough weight to have enough for real heat. and it's by nature quite spread out, which dissapates energy. thusly, netting burns slow and sputtery.
i have test roasted quite a bit of netting, and it ain't no bonfire sort of an affair.
if not held vertical, so it can feed on itself, it most often just winks out.