OK, how about going the other way, changing the content to match the rules that work?
Before calling the transformer, the plugin has this.
$content = apply_filters( ‘the_content’, $content );
So in functions.php, you should be able to add something like this:
add_filter( 'instant_articles_content', 'change_ia_content', 10, 3 );
function change_ia_content ( $content ) {
$pattern = '~<p><span class='embed-youtube' style='text-align:center; display: block;'><iframe.*</iframe></span></p>~';
preg_match_all($pattern, $content, $matches);
foreach ($matches[0] as $match) {
$wrappedframe = str_replace("<p><span class='embed-youtube' style='text-align:center; display: block;'>", "", $match);
$wrappedframe = str_replace('</span></p>', '', $wrappedframe);
//replace original iframe with new in content
$content = str_replace($match, $wrappedframe, $content);
}
return $content;
}
I don’t know if that code is exactly right, but I think that idea should work.
Then you should be able to remove the custom rules and you should be in the same position as agk4444, for whom everything works.
Last thought. I wonder if class=”youtube-player” is breaking this. It shouldn’t, but, who knows? So you could similarly replace that out in the function above.
Good luck!
