Security Error: PDF files must be hosted on the same domain as this site.
PDF is hosted on: http://https%3A%2F%2Fpungseok.com%2Fwp-content%2Fuploads%2F2018%2F06%2F%EB%8F%84%EC%9E%90%EA%B8%B0-%EC%88%98%EB%A6%AC%EB%B3%B5%EC%9B%90-%EC%82%AC%EB%A1%80-%EC%97%B0%EA%B5%AC.pdf but this site is: https://pungseok.com