wro4j-core/src/main/java/ro/isdc/wro/util/WroUtil.java
public static String getPathInfoFromLocation(final HttpServletRequest request, final String location) {
    if (StringUtils.isEmpty(location)) {
      throw new IllegalArgumentException("Location cannot be empty string!");
    }
    final String contextPath = request.getContextPath();
    if (contextPath != null) {
      if (startsWithIgnoreCase(location, contextPath)) {
        return location.substring(contextPath.length());
      } else {
        return location;
      }
    }
    final String noSlash = location.substring(1);
    final int nextSlash = noSlash.indexOf('/');
    if (nextSlash == -1) {
      return "";
    }
    return noSlash.substring(nextSlash);
  }
public static String getPathInfoFromLocation(final HttpServletRequest request, final String location) {
    if (StringUtils.isEmpty(location)) {
      throw new IllegalArgumentException("Location cannot be empty string!");
    }
    final String contextPath = request.getContextPath();
    if (contextPath != null) {
      if (startsWithIgnoreCase(location, contextPath)) {
        return location.substring(contextPath.length());
      } else {
        return location;
      }
    }
    final String noSlash = location.substring(1);
    final int nextSlash = noSlash.indexOf('/');
    if (nextSlash == -1) {
      return "";
    }
    return noSlash.substring(nextSlash);
  }
Retrieve pathInfo from a given location.

@param request
@param location
where to search contextPath.
@return pathInfo value.