Factorio Forums

The documentation at https://lua-api.factorio.com/latest/cla ... otype.html links to the anchor https://lua-api.factorio.com/latest/cla ... prototypes, which doesn't appear to exist anymore.
(should probably be https://lua-api.factorio.com/latest/cla ... types.html)

Thanks, that one and a couple of other ones were missed with the migration to LuaPrototypes. Fixed for the next release.