Defend against /kill

So there are many mods with armor that can bypass the /kill command. I've made one which can bypass the damage in the void, however, I can still be /kill ed. Strangely, i actually do not die, it just shows the death screen and changes my player model to the normal death angle. Pressing respawn just puts me back where i died, not at my spawn. So, the problem appears to be how to prevent the death screen from appearing or have the game register that I didn't die. 

Is this possible through any means? I've tried searching, but to no avail. If you have any way that you know, please let me know.