code: public String getPath(String base, String uri) throws ResourceNotFoundException, IOException {
  
  		String fileName = uri;
  		if (!fileName.endsWith(".scss")) {
  			fileName += ".scss";
  		}
  
  		String parentPath = base.replace('\\', '/');
  		fileName = fileName.replace('\\', '/');
  
  		return PathNormalizer.concatWebPath(parentPath, fileName);
  	}
docs: Returns the path of the resource
  
  @param base
  the base path
  @param uri
  the relative URI
  @return the resource path
  @throws ResourceNotFoundException
  if the resource is not found
  @throws IOException
  if an IOException occurs