app/assets/javascripts/tramway/landing/application.js in tramway-landing-3.1.1.9 vs app/assets/javascripts/tramway/landing/application.js in tramway-landing-3.1.1.10

@@ -6,14 +6,14 @@
     const anchor = $(this).data('anchor');
     $(window).scrollTop($(anchor).offset().top);
   });
 
   const iframe_selectors_for_video = ['iframe[src*="vk.com"]', 'iframe[src*="youtu.be"]', 'iframe[src*="youtube.com"]'];
-  for (const selector in iframe_selectors_for_video) {
+  iframe_selectors_for_video.forEach(function(selector) {
     $(selector).each(function() {
       width = $(this).parents('div').first().width();
       height = width / 16 * 9;
       $(this).width(width);
       $(this).height(height);
     });
-  }
+  })
 });