I am having trouble implementing some fontawesome fonts in my template. It is very rare, but in the desktop version of the page the font is shown, however in the mobile version (not in Chrome Inspector, but on a real device), this font is not shown.
So that you can see an example, you can visit http://future.juanvillen.es, and see the icon that appears on the back-to-top. The same happens with shortcode-core plugin (with notices box)
Does anyone know what is happening?
Thanks so much.