All error conditions
 280   can't open cache file [chkcache]
  33   http error
3271   no match for selector
  22   search string is empty!
  32   search term regular expression error
3742   sorry, access denied or file does not exist.
   1   syntax error [arg] in selector
   2   syntax error [no '/' in relpath] in selector
   7   syntax error [no '/'] in selector [pselect]
.