I have a problem trying to get the thumbnail URL of each post on the archive page. I used the basic technics but it always return the url of the first featured image of the page.
Here the part of the code of my template-parts/post/content/content.php
The goal of this is to open the featured image of each post on a lightbox. Here the link to the page : http://leos-sipek.thomasdesnoyers.com/category/divers-types-dune-ideographie-stochastique/peinture-sur-papier/metaplasme/
If you click on the second post it shows the featured image of the first post.
<div class="post-thumbnail">
<a rel="lightbox" data-gall="gall-frame" data-lightbox-type="inline" href="#inline-content">
<?php the_post_thumbnail( 'twentyseventeen-featured-image' ); ?>
</a>
</div>
<!-- Lightbox -->
<div id="inline-content" style="display:none;">
<?php if (has_post_thumbnail( $post->ID )) : ?>
<?php $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'single-post-thumbnail' ); ?>
<div class="img-single" style="background-image: url('<?php echo $image[0]; ?>')"></div>
</div>
Thanks