Controls whether the map is zooms to the limits of the
elements on the map. This is useful for interactive applications where the
map data is updated. If "always" (the default), the map always
re-zooms when new data is received; if "first", it zooms to the
elements on the first rendering, but does not re-zoom for subsequent data;
if "never", it never re-zooms, not even for the first rendering.
Examples
# Don't auto-zoom to the objects (can be useful in interactive applications)
leaflet() %>% addTiles() %>% addPopups(174.7690922, -36.8523071, "R was born here!") %>%
mapOptions(zoomToLimits = "first")