code: private void handleGeneratedCssInDebugMode(String requestedPath, HttpServletRequest request,
  			HttpServletResponse response, BinaryResourcesHandler binaryRsHandler)
  			throws ResourceNotFoundException, IOException {
  
  		// Retrieves the content of the CSS
  		Reader rd = rsReaderHandler.getResource(null, requestedPath);
  		if (rd == null) {
  			throw new ResourceNotFoundException(requestedPath);
  		}
  
  		String content = IOUtils.toString(rd);
  		String requestPath = getRequestPath(request);
  
  		// Rewrite the generated binary resources
  		String result = CssDebugUrlRewriter.rewriteGeneratedBinaryResourceDebugUrl(requestPath, content,
  				binaryRsHandler.getConfig().getServletMapping());
  		Writer out = response.getWriter();
  		out.write(result);
  	}
docs: Handle the generated CSS content in debug mode.
  
  @param requestedPath
  the request path
  @param request
  the request
  @param response
  the response
  @param binaryRsHandler
  the image resource handler
  @throws ResourceNotFoundException
  if the resource is not found
  @throws IOException
  if an IO exception occurs