Merge pull request #840 from theamoeba/839-dead-url-issue

Fixing issue with dead link in #839

src/Sanitize.php

@@ -368,7 +368,7 @@ public function sanitize($data, $type, $base = '')
 
  // Strip out HTML tags and attributes that might cause various security problems.
  // Based on recommendations by Mark Pilgrim at:
- // http://diveintomark.org/archives/2003/06/12/how_to_consume_rss_safely
+ // https://web.archive.org/web/20110902041826/http://diveintomark.org:80/archives/2003/06/12/how_to_consume_rss_safely
  if ($this->strip_htmltags) {
  foreach ($this->strip_htmltags as $tag) {
  $this->strip_tag($tag, $document, $xpath, $type);