Issue with GeoportailFrance provider

Hi,

I am using tmap 4.1, with R 4.4.1 and Rstudio 2025.05.

I want to use GeoportailFrance.orthos and GeoportailFrance.plan to produce maps in plot mode.

The maps produced (in plot or view mode) don't have any background and no error is returned.
Here is a small eg.

tmap_mode("plot")
    tm_basemap(server = providers$GeoportailFrance.orthos) +
    tm_shape(World |> dplyr::filter(name == "France")) +
    tm_polygons(
      "HPI",
      fill.scale = tm_scale(values = "reds"),
      fill_alpha.scale = 0.5)

I tried the same code with tm_tiles() without success.
I checked the leaflet repo (both original and r versions) and no issue has been posted on this.
On the leaflet provider preview, it seems that the GeoportailFrance layers are working : https://leaflet-extras.github.io/leaflet-providers/preview/index.html

So, I assume the error comes from me ?

Thanks

Start with the provided tmap_mode("plot") example using tm_basemap(server = providers$GeoportailFrance.orthos) and compare it with tm_tiles() and the Leaflet provider preview. Trace the GeoportailFrance provider handling; done when the orthophoto and plan layers render as backgrounds in the reported map modes without errors.