code: function parseOrigLink (node, nodeType, feedType) {
    var origLink;
  
    if (origLink = utils.getFirstFoundPropValue(node, ['feedburner:origlink', 'pheedo:origlink'])) {
      return origLink;
    } else {
      utils.parse(node.link, function (linkEl) {
        var linkAttr = linkEl['@'];
  
        if (linkAttr.href && linkAttr.rel === 'canonical') {
          origLink = linkAttr.href;
          return true;
        }
      }, this, true);
    }
  
    return origLink;
  }
docs: Parses the origLink for item nodes.
  
  @param node
  @param nodeType
  @param feedType