message: Remove custom attribs as consumed
diff: @@ -163,6 +163,7 @@ var sanitizeHtmlParams = {
  /#[0-9a-fA-F]{6}/.test(customAttributeValue)
  ) {
  style += cssAttributeKey + ":" + customAttributeValue + ";";
  + delete attribs[customAttributeKey];
  }
  });
  