Markers don't appear due to SSL certificate name mismatch

[davidbody]

After upgrading to Leaflet 2.0.0 and deploying an RMarkdown project to github pages, leaflet markers no longer appear.

As shown in the screenshot below, this appears to be a SSL issue.

The certificate for cdn.leafletjs.com is only valid for *.cloudfront.net and cloudfront.net.

The full error message is

An error occured: cdn.leafletjs.com uses an invalid security certificate. The certificate is only valid for the following names: *.cloudfront.net, cloudfront.net Error code: SSL_ERROR_BAD_CERT_DOMAIN

[hinkelman]

I had the presumably related problem of markers not showing up when deploying a shiny app to shinyapps.io. My workaround was to use a custom icon for the marker.

[daltonhance]

This also appears to be affecting the leaflet help page here: https://rstudio.github.io/leaflet/markers.html

Markers do not show up in the first example under Icon Markers

[aoles]

I'm experiencing a similar problem of missing markers in the online vignette. The markers render just fine when I open the html file locally.

[schloerke]

Fixed in #544

If you need a fix now...

devtools::install_github("rstudio/master")

Pending more fires, I plan on releasing next week.

[bw4sz]

@schloerke just to clarify, will we need to update our local rstudio to get this update, or will shinyapps be updated to get the markers? Same problem as above, my markers show up locally, but not on shinyapps.