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Sanitize formspec fields server-side (#14878)

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sfan5 2024-08-21 21:34:46 +02:00 • committed by GitHub
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doc/lua_api.md
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@ -2625,6 +2625,9 @@ background elements are drawn before all other elements.
**WARNING**: do _not_ use an element name starting with `key_`; those names are
reserved to pass key press events to formspec!
**WARNING**: names and values of elements cannot contain binary data such as ASCII
control characters. For values, escape sequences used by the engine are an exception to this.
**WARNING**: Minetest allows you to add elements to every single formspec instance
using `player:set_formspec_prepend()`, which may be the reason backgrounds are
appearing when you don't expect them to, or why things are styled differently