Auto Handling does not work

Update to 7.x-3.0-rc1 and report back please.

As you are using in your site aggregate JS files please don't forget after the update to clear cache in admin/config/development/performance to be sure the new versions of the files are loaded.

After you have updated report back and I will check again that node where shadowbox doesn't work.

Regards.

But you haven't updated shadowbox. Update shadowbox to version 7.x-3.0-rc1 released yesterday.

You don't need to disable aggregate JS. Just clear cache on performance configuration after update.

Works same as previously. You just have to wait till the page is fully loaded. If you click before the page finishes loading then the shadowbox effect is still not available. As for my test it works on your galleries and on the node (the images with the rel) as before. But still seems the auto handling is not working.

Your website is a little heavy in terms of javascript, I noticed that already yesterday. It would be great if you can review that before trying to find out what is happening with the auto handling.

For example I suggest you review why in your website google analytics javascript, ga.js file, is being loaded 26 times in the header. Once should be enough.

There is too a javascript error from a javascript file loaded from s.yimg.com, which I bet is flicker javascript. I suppose that is not the problem anyway. Though maybe you can check if there is an updated version without that javascript error.

Probably if you solve the ga.js problem is enough to make the site render faster and that way will be easier to analyze further.

Anyway I will check again later and if I find anything else I will reply again.

The following patch should solve this issue.

This was actually a bug. I have pushed the patch that fixes it to 7.x-4.x and 7.x-3.x branches. Soon I will release a new version of the module.

For me the error still exists with 3.0 rc2 and 4.x on D7.
No rel-Attribute added - no Shadowbox.

I figured out that shadowbox_auto.js depends on jQuery Update, because the method attr() requires at least jQuery 1.6.
So i modified the code instead of installing Jquery Update, as this Module is known to produce additional errors on other positions.
This is my code, as I do not need the rel attribute on image links elsewhere (original code is commented):

(function ($) {

// Check that shadowbox library is available
if (typeof Shadowbox === 'undefined') return;

Drupal.behaviors.shadowbox = {
  attach: function(context, settings) { 
    Shadowbox.init(Drupal.settings.shadowbox);
    if ($('iframe#sb-player', top.document).length == 0) {
      if (settings.shadowbox.auto_enable_all_images == 1) {
        $("a[href$='.jpg'], a[href$='.png'], a[href$='.gif'], a[href$='.jpeg'], a[href$='.bmp'], a[href$='.JPG'], a[href$='.PNG'], a[href$='.GIF'], a[href$='.JPEG'], a[href$='.BMP']").each(function() {
          /*if ($(this).attr('rel') == '') {*/
            if (settings.shadowbox.auto_gallery == 1) {
              /*$(this).attr('rel', 'shadowbox[gallery]');*/
              $(this)[0].setAttribute('rel', 'shadowbox[gallery]');
            }
            else {
              /*$(this).attr('rel', 'shadowbox');*/
              $(this)[0].setAttribute('rel', 'shadowbox');
            }
          /*}*/
        });
      }
    }
    Shadowbox.clearCache();
    Shadowbox.setup();
  }
};

})(jQuery);

Perhaps this helps someone till a patch comes out.

Beside that in SOME cases the linked images with manual set rel are counted twice. For example there are 4 Images in node, the counter displays "1/8".

If there is a problem with the count then it is other issue, please open a different issue for it and add and example with the problem.

This auto handling bug is fixed with the patch on #7 and already pushed to the development branches 7.x-4.x and 7.x-3.x. It is not corrected on any realeased version.

What you say about attr is not true, that function is available since jQuery 1.0+. Please read jQuery documentation correctly:
http://api.jquery.com/attr/

that function is available since jQuery 1.0+.

Yes, but it wasn't working in my case. I don't know if it's a Drupal issue on the included jQuery lib or whatever, but changing it to the native Javascript syntax got it to work fine, so I blamed jQuery for that misbehaviour.