>reader is the cleaned article, similar to https://www.androidauthority.com/google-chrome-reading-mode-2-3354627/
>original is the html of the page as we fetched it
>iframe is the page viewed through an iframe element (https://www.hostinger.com/tutorials/what-is-iframe)
think of an iframe as the original page in another tab, but the tab is in a box in smry!
