code: @Override
  	protected String rewriteUrl(GeneratorContext context, String content) throws IOException {
  
  		// Here we create a new context where the bundle name is the Jawr
  		// generator CSS path
  		// The version of the CSS classpath for debug mode will be different
  		// compare to the standard one
  		JoinableResourceBundle tempBundle = new JoinableResourceBundleImpl(ResourceGenerator.CSS_DEBUGPATH, null, null,
  				null, null, null, context.getConfig().getGeneratorRegistry());
  		BundleProcessingStatus tempStatus = new BundleProcessingStatus(BundleProcessingStatus.FILE_PROCESSING_TYPE,
  				tempBundle, context.getResourceReaderHandler(), context.getConfig());
  
  		CSSURLPathRewriterPostProcessor postProcessor = new CSSURLPathRewriterPostProcessor();
  		String resourcePath = context.getPath();
  		tempStatus.setLastPathAdded(getGeneratorPrefix() + GeneratorRegistry.PREFIX_SEPARATOR + resourcePath);
  		StringBuffer resourceData = postProcessor.postProcessBundle(tempStatus, new StringBuffer(content));
  		return resourceData.toString();
  
  	}
docs: /*
  (non-Javadoc)
  
  @see
  net.jawr.web.resource.bundle.generator.AbstractCSSGenerator#rewriteUrl(
  net.jawr.web.resource.bundle.generator.GeneratorContext,
  java.lang.String)