code: function() {
      var maxWait = _globalConfig.flashLoadTimeout;
      if (typeof maxWait === "number" && maxWait >= 0) {
        var pollWait = Math.min(1e3, maxWait / 10);
        var fallbackContentId = _globalConfig.swfObjectId + "_fallbackContent";
        _swfFallbackCheckInterval = _setInterval(function() {
          var el = _document.getElementById(fallbackContentId);
          if (_isElementVisible(el)) {
            _clearTimeoutsAndPolling();
            _flashState.deactivated = null;
            ZeroClipboard.emit({
              type: "error",
              name: "swf-not-found"
            });
          }
        }, pollWait);
      }
    }
docs: Continuously poll the DOM until either:
  (a) the fallback content becomes visible, or
  (b) we receive an event from SWF (handled elsewhere)
  
  IMPORTANT:
  This is NOT a necessary check but it can result in significantly faster
  detection of bad `swfPath` configuration and/or network/server issues [in
  supported browsers] than waiting for the entire `flashLoadTimeout` duration
  to elapse before detecting that the SWF cannot be loaded. The detection
  duration can be anywhere from 10-30 times faster [in supported browsers] by
  using this approach.
  
  @returns `undefined`
  @private