The latest version of Firefox has a button called Reader View that is supposed to hide the clutter on the page such as sidebars and headers and only show the article.https://support.mozilla.org/en-US/kb/firefox-reader-view-clutter-free-web-pagesHow do I make my site compatible with this button?    When I click the button on my site it says:  Failed to load article from page
How do I make my site compatible with Firefox's Reader View feature
firefox;markup;articles