Error displaying post images in Safari

Hi,
I’ve just installed your plugin and tested to have Infinite Scroll when reading post in single.php.
(It’ll display old posts underneath the current post when scroll down.)

They’re working just fine in both Chrome and Firefox.

But in Safari latest version on both Mac & iPhone.
The post images in the old posts doesn’t show up at all.
I only use the simple code to display images.

<?php // Check if the post has a Post Thumbnail assigned to it.
	if ( has_post_thumbnail() ) {
	the_post_thumbnail();
	}
?>

I don’t know why in Safari the height of these images change to 0px forcing it not to display.
Is it something to do which your JF sequences?

Can you please help to fix?