Expected behavior

Icon showed correctly

Actual behavior

icons showed blank

Resources (screenshots, code snippets etc.)

we met a problem while using icons (i class="fas fa ...") in template. as we currently locate in China, and out website cannot loading icons correctly.(i think its connection failed b/c we can only get blank there(maybe due to Great Firewall, in China we are not allowed to connect to twitter/Google/instagram or site like this because of government rules... so hypothetically i'm thinking it forbids me to load the icon resources, another proof is when i use VPN the icon can showup all correctly.) how can i fix this, I am thinking maybe I can get some sorta 'icon lib package' and put it in our cdn/server on my own?