code: public static String normalize(final String s) {
          if (s == null || s.trim().isEmpty()) {
              return "unspecific";
          }
          return s.replace(':', '/')
                  .replace('=', '-')
                  .replace(',', '|')
                  .replace("\"", "")
                  .replace('#', '-');
      }
docs: Helper to ensure that given string can be handled in web-view (replaces some invalid
  characters).
  
  @param s the input string to normalize
  @return the normalized string