Does Life Steal apply to damage dealt by Thorns?

Some pieces of equipment have an attribute that states, "Melee attackers take X damage per hit." Another attribute is, "X% of Damage Dealt Is Converted to Life."

My question is: Does damage dealt by Thorns count as "Damage Dealt" when calculating Life Steal?

Solution 1:

No, Life Steal does not apply to damage dealt by thorns.

Just tested this out, Stacking thorns with + life on hit, as well as damage converted to life.

I went to A3 hell in the depths (Before ghom) with Healing numbers turned on and just let monsters hit me. (had a shield on with 1550 Damage to attackers)

The life on hit and the damage conversion did not show up as healing numbers, and did not heal me.

When I attacked mobs it was clearly visible.

Solution 2:

No. Life steal does not apply to damage dealt from thorns.