Mapbox "fitBounds" handling

As per https://github.com/plotly/plotly.R/blob/9ee548023bba6d68dd953f46485b2e611026766b/inst/htmlwidgets/plotly.js#L206-L220

I believe the if(!args) check should be changed (or the parameter for args should default to null or some other calculated default, not {}) as it currently causes an "e is undefined" error in mapbox (where e is the 2nd parameter).

I've got around it by explicitly providing a mapbox = list(_fitBounds = list(c(xmin, ymin), c(xmax, ymax)), options = list()) entry in my plotly::layout call.

This also serves as a reminder that the fitBounds doesn't seem to work for restyle either.

inst/htmlwidgets/plotly.js の 206–220 行目から始め、fitBounds 引数のデフォルト値と、2 番目のパラメーターが undefined になるエラーを発生させる Mapbox 呼び出しに注目してください。mapbox オプションの明示的なリストがある場合とない場合で問題を再現し、その後、restyle 中でも fitBounds が機能することを確認してください。