NWS alert feed does not render anything

[davidbarratt]

This feed from @weather-gov:
https://alerts.weather.gov/cap/wwaatmget.php?x=FLC095&y=0
does not render anything:
https://chickar.ee/alerts.weather.gov/Y2FwL3d3YWF0bWdldC5waHA_eD1GTEMwOTUmeT0w

It throws the error:

Unkown XML Type