Exception inheritance from jsdom

gistfile1.js

core.DOMException = function(code, message) {
  this._code = code;
  Error.call(this, core.exceptionMessages[code]);
  this.message = core.exceptionMessages[code];
  if(message) this.message = this.message + ": " + message;
  if(Error.captureStackTrace) Error.captureStackTrace(this, core.DOMException);
};

core.DOMException.prototype = {
  get code() { return this._code;},
  INDEX_SIZE_ERR              : INDEX_SIZE_ERR,
  DOMSTRING_SIZE_ERR          : DOMSTRING_SIZE_ERR,
  HIERARCHY_REQUEST_ERR       : HIERARCHY_REQUEST_ERR,
  WRONG_DOCUMENT_ERR          : WRONG_DOCUMENT_ERR,
  INVALID_CHARACTER_ERR       : INVALID_CHARACTER_ERR,
  NO_DATA_ALLOWED_ERR         : NO_DATA_ALLOWED_ERR,
  NO_MODIFICATION_ALLOWED_ERR : NO_MODIFICATION_ALLOWED_ERR,
  NOT_FOUND_ERR               : NOT_FOUND_ERR,
  NOT_SUPPORTED_ERR           : NOT_SUPPORTED_ERR,
  INUSE_ATTRIBUTE_ERR         : INUSE_ATTRIBUTE_ERR
};

core.DOMException.prototype.__proto__ = Error.prototype;