Pass Base64 jpeg image to og:image

Question

I have image that is being generated in runtime on my website and I display it in html using

Answer 1

Open Graph needs an URL.

You could try saving your base64 as a temp image.

Answer 2

pase it to a php file that echo it out:

<meta property='og:image' content='decoder.php?data=<!-- base64 data -->'/>

decoder.php:

<?php
    echo base64_decode($_GET['data']);
?>

EDIT make sure you check source for security reason.