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%2F2021%2F06%2F2.-%EB%85%B8%EC%9D%B8%EB%B3%91%EC%9D%98-%EC%B9%98%EB%A3%8C-1.pdf but this site is: https://pungseok.com