see https://github.com/ropensci/rcrossref/issues/185#issuecomment-605446627 perhaps something to do with where the `mdenv` environment is instantiated, perhaps put in onload, or somewhere else?
see ropensci/rcrossref#185 (comment)
perhaps something to do with where the
mdenvenvironment is instantiated, perhaps put in onload, or somewhere else?