FontAwesome does not translate to the shared environment

In my prototype I use FontAwesome and it works fine on my computer and Preview. As soon as I share the prototype online, all FontAwesome icons show as squares. Please help me fix it.

You need to make sure you are exporting the FontAwesome URL with your prototype. Do this in Publish / Preview options / configure / web fonts. The exact .css link will depend on the version of FA you are using.