Cartography Table Slot 0 (Result Slot) can't be use InventoryClickEvent

I'm writing on a map plugin, to deny copyright protected maps. The maps have a lore and if the lore is on the map, it couldn't be copied.

This works fine with the Player-Crafting Inventory and the Workbench Inventory. On click onto the map in the Result slot, I can cancel the event. But this doesn't works with the Cartography Table.

If I check every Slot of the Cartography Table and first put the filled map in and then the empty map, the event will be canceled. If I put first an empty map in and then the filled map, the event wouldn't be canceled and I can click on the Result Slot and get the maps copied.

if(e.getClickedInventory().getItem(0) != null) {
	if(e.getClickedInventory().getItem(0).hasItemMeta()) {
		ItemMeta iMeta = e.getClickedInventory().getItem(0).getItemMeta();
		if(iMeta.hasLore()) {
			List<String> iLore = e.getClickedInventory().getItem(0).getItemMeta().getLore();
			String str = ChatColor.stripColor(String.valueOf(iLore));
			String original = "Original";
			String copy = "Copy";
							
			if(str.contains(original) || str.contains(copy)) {
				e.setCancelled(true);
				p.closeInventory();
				p.sendMessage("Can not be copied");
				return;
			}
		}
	}
}