I can't used external CSS stylesheets

I can’t used external CSS stylesheets. url is can not access : https://codepen.io/chriddyp/pen/bWLwgP.css
show : Pen Not Found help me please.

external CSS stylesheets

external_stylesheets = [
‘href’: ‘https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css’,
‘rel’: ‘stylesheet’,
‘integrity’: ‘sha384-MCw98/SFnGE8fJT3GXwEOngsV7Zt27NXFoaoApmYm81iuXoPkFOJwJ8ERdknLPMO’,
‘crossorigin’: ‘anonymous’

hi @cocktail
Welcome to the community.

That’s probably because @chriddyp just has to renew the link or update it. It should work tomorrow.

Thank you for letting us know.

Thank you so much. I will used again in tomorrow. :smiley:

Just fixed! Missed the renewal on the codepen account. Thanks for reporting @cocktail !

Thanks a lot. When will it be available again?
I tried it. but still the same problem

Huh, really? It works for me. https://codepen.io/chriddyp/pen/bWLwgP.css

Ohh, When I press F5 it works. Thanks you so much. :grin: