gistfile1.txt

For reference, here's how I'm doing it now:

```
add_filter( 'oembed_request_post_id', function( $post_id, $url ) {
    if( is_my_gallery_page() ) {
        add_filter( 'post_embed_url', function( $embed_url ) use ($url) {
            remove_filter( current_filter(), __FUNCTION__ );
            $url = explode("?",$url);
            $embed_url = $embed_url."?".$url[1];
            return $embed_url; 
        });
    }
    return $post_id;
}, 10, 2 );
```