Geopandas output not rendered correctly

Bug description

A while ago I rendered qmd files with the following Python code:

import geopandas

world = geopandas.read_file(geopandas.datasets.get_path('naturalearth_lowres'))
world = world[(world.pop_est>0) & (world.name!="Antarctica")]

world['gdp_per_cap'] = round((world.gdp_md_est * 1e6) / world.pop_est, 2)

world.explore(
     column="gdp_per_cap", # make choropleth based on "BoroName" column
     popup=True, # show all values in popup (on click)
     # tiles="CartoDB positron", # use "CartoDB positron" tiles
     cmap="viridis", # use "Set1" matplotlib colormap
     style_kwds=dict(color="black") # use black outline
    )

and worked just fine giving me the following:

Now it renders like this

Looking at the generated md file I noticed that it used to be an iframe with encoded html using the data-html tag. Now it generates an iframe with srcdoc and the output is not url-encoded

I'm using the latest stable release 1.1.251 and when it worked I was using 0.9.345

Checklist

• Please include a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
• Please format your issue so it is easier for us to read the bug report.
• Please document the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
• Please document the operating system you're running. If on Linux, please provide the specific distribution.