Worker backslash stripped?

Hi,

Using a worker to show some HTML.

I’m trying to show fontawesome icon so I’m using this code:

.bootstrap-select.btn-group.show-tick .dropdown-menu li a span.text:before{
         font: normal normal normal 14px/1 FontAwesome;
         content: "\f10c";
         } 

But the backslash \ is getting stripped by Cloudflare, and cant’ show any icons…

double \ solved it!