问相关的youtube视频显示虽然REL=0

EN

$(".video_wrapper li").click(function() {
    $('html, body').animate({
        scrollTop: $("#bigvid").offset().top
    }, 1000);
});

 $(".video_wrapper").on('click',"a", function(event) {
	
 
	 
  event.preventDefault();
  event.stopImmediatePropagation();
  event.stopPropagation();
 
 $(".video_case iframe").prop("src", $(event.currentTarget).attr("href"));
 


});

    <div class="video_case" id="bigvid">
    <iframe width="705" height="445" src="https://www.youtube.com/embed/<?php the_field('main-video'); ?>&#63rel=0" frameborder="0" allowfullscreen allow="autoplay"></iframe>
  <span class="desc">  <?php the_field('video-desc'); ?></span>
</div>

<?php if (get_field('video-id-1')): ?>
<div class="video_wrapper">
    <ul>
        <li class="video_thumbnail"><a href="https://www.youtube.com/embed/<?php the_field('video-id-1'); ?>&#63rel=0&amp;autoplay=1" class="video-1" title=""><span class="video-btn"></span><img src="https://img.youtube.com/vi/<?php the_field('video-id-1'); ?>/mqdefault.jpg" alt="<?php the_field('video-alt-1'); ?>"/></a></li>
        <li class="video_thumbnail"><a href="https://www.youtube.com/embed/<?php the_field('video-id-2'); ?>&#63rel=0&amp;autoplay=1" class="video-2" title=""><span class="video-btn"></span><img src="https://img.youtube.com/vi/<?php the_field('video-id-2'); ?>/mqdefault.jpg" alt="<?php the_field('video-alt-2'); ?>"/></a></li>
        <li class="video_thumbnail"><a href="https://www.youtube.com/embed/<?php the_field('video-id-3'); ?>&#63rel=0&amp;autoplay=1" class="video-3" title=""><span class="video-btn"></span><img src="https://img.youtube.com/vi/<?php the_field('video-id-3'); ?>/mqdefault.jpg" alt="<?php the_field('video-alt-3'); ?>"/></a></li>
    </ul>
</div>
<?php endif; ?>