@ZOS: Improve "Access a private function" error message

[Sounomi]

Here's an example of scene calling causing taint.

Basically I've wanted to modify the fence window and the most logical point for doing so was when it was first opened. But simply redoing the function that handles that causes the inventory fragment to get tainted. I tried everything I could to get around and I don't see what I'm doing wrong. Ultimately I created a simple test add-on which just straight out copies the original code and it still causes the taint.

local function OnOpened(fence, enableSell, enableLaunder)
    if not IsInGamepadPreferredMode() then
        fence:InitializeModeBar(enableSell, enableLaunder)
        fence.mode = enableSell and ZO_MODE_STORE_SELL_STOLEN or ZO_MODE_STORE_LAUNDER
        SCENE_MANAGER:Show("fence_keyboard")
    end
end

local function OnAddOnLoaded(code, name)
    ZO_PreHook(FENCE_KEYBOARD, "OnOpened", function(...) OnOpened(...); return true end)
end

EVENT_MANAGER:RegisterForEvent("FenceTest", EVENT_ADD_ON_LOADED, OnAddOnLoaded)

I did wind up finding another way to accomplish what I wanted to do but I still worry that whatever's triggering the taint will be a problem for others. For instance, the Awesome Guild Store add-on currently is causing inventory fragment taint as well and it could be due to a similar reason as the above code causes it.

Originally Posted by Rhyono I at least didn't see it mentioned: how did this change with Homestead for it to suddenly become so prevalent?

My guess is that they tightened up add-on security a bit more as a result to exploits that were mentioned to be used.