use the cssrewrite
filter from Assetic bundle
In config.yml:
assetic:
debug: %kernel.debug%
use_controller: false
filters:
cssrewrite: ~
And then call your stylesheets like this:
{% stylesheets 'bundles/cmtcore/css/*' filter="cssrewrite" %}
<link rel="stylesheet" type="text/css" media="screen" href="https://stackoverflow.com/questions/7044631/{{ asset_url }}" />
{% endstylesheets %}
Oh and don’t forget to use php app/console assetic:dump