Symfony Asset bundling

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In Symfony 2 Im using asset bundling like so.\[code\]{% stylesheets 'bootstrap/css/bootstrap.css' 'bootstrap/flat/css/flat-ui.css' filter='cssrewrite' filter='?yui_css'%}\[/code\]It works perfectly, however my @font-face resources do not load. They work fine on the dev environment, but as soon as the css is bundled into a single file on the production environment, the default font loads instead?The cssrewrite is working correctly as I checked the relative path was correctly updated to point to the right area, I even tried using the absolute URL which did not work.I tried turning compiling of, which did not help. The only thing that worked was removing it from the bundling, and loading it directly.Is there some kind of bug with symfony asset bundling and @font-face :S :S :SBelow is the css for @font-face in the prod environment after being bundled.\[code\]@font-face{font-family:"Flat-UI-Icons-16";src:url("../bootstrap/flat/fonts/Flat-UI-Icons-16.eot");src:url("../bootstrap/flat/fonts/Flat-UI-Icons-16.eot?#iefix") \[/code\]