The built-in browser is not working

it is not working with all lessons (not a certain one)

hovering the browser - show this info

q51f00itkhr0ap8cc3u43l92mrgehf8ehs25r0a53grde158kkpg.cc-propeller.cloud’s server IP address could not be found.

Hi @coursemaster40066,

If you’re still having this problem, and refreshing the page doesn’t fix it, please file an issue at https://help.codecademy.com/.