WordPress Fix: SSL Alert Missing security headers Website Updates After trying the linked fix and getting a 500 internal error message I found the following fix via google. Link Here Share this:Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)Click to print (Opens in new window)Click to email a link to a friend (Opens in new window)Like this:Like Loading...