Maps are blank when previewing in RStudio on Windows with R 4.4.0

[AMBarbosa]

This was working fine with my previous version of R (4.3.2) on RStudio, but after updating R to version 4.4.0 on Windows (haven't updated R on Linux yet), I'm getting a blank map viewer every time I try a leaflet map (including the ?leaflet Examples), both with the previous and with the newest version of RStudio (released 2024-04-29). It's working OK on R without RStudio, though.

[Bevann]

I am also running into this issue. Mapview and tmap operations that rely on leafltet are also not rendering in viewer, or when displayed in browser.

[gadenbuie]

There is a bug with R 4.4.0 on Windows that affects RStudio's preview of htmlwidgets (and other HTML content). Please follow the issue here for more information: rstudio/rstudio#14603

[AndrewMcMillanLandcare]

Solution to problem:

I have just installed R Version 4.4.0 and upgraded Rstudio to v 2024.04.0 build 735. I was suddenly unable to use MapView with the same symptoms as described above. The Viewer pane just came up blank. This was also true for trying to display the widget produced by ggplotly in the plotly package.

Just by fluke I discovered by putting the command

options(viewer = NULL)

before the mapview command solved the issue.

For example, try:

library(mapview)
options(viewer = NULL)
mapview(breweries)

[caballeroarturo]

I'm still having the same issue. I tried the solution provided by @AndrewMcMillanLandcare, but it didn't work.

[gadenbuie]

Have you tried the instructions mentioned here: rstudio/rstudio#14603 (comment)?

[AMBarbosa]

The instructions mentioned here by @gadenbuie worked, and now there's a more recent official release of R (4.4.1) where this issue comes fixed.