Fire disables shield

[Rad586]

Vanilla shields are made from wood, so, if a player has been on fire for 5s, his shield would be disabled.
Maybe a "wooden_shield" tag is needed to define those shields for better compability.

[Rad586]

Fire damages shield implemented in kjs:

EntityEvents.hurt("minecraft:player", event => {
  if(event.source.type != 'onFire') return;
  entity.hurtCurrentlyUsedShield(10);
});