put-placeholder|-moz-read-write|-moz-read-only|-ms-clear|-ms-expand|-ms-reveal){/.test(rule)) {
          console.error("There was a problem inserting the following rule: \"" + rule + "\"", e);
        }
      }
    } else {
      tag.appendChild(document.createTextNode(rule));
    }

    this.ctr++;
  };

  _proto.flush = function flush() {
    // $FlowFixMe
    this.tags.forEach(function (tag) {
      return tag.parentNode && tag.parentNode.removeChild(tag);
    });
    this.tags = [];
    this.ctr = 0;

    if (process.env.NODE_ENV !== 'production') {
      this._alreadyInsertedOrderInsensitiveRule = false;
    }
  };

  return StyleSheet;
}();

export { StyleSheet };