Disable cache on images of post by adding class “skip-lazy”

Hi there,

I was able to disable lazy loading for images using the class method by adding “skip-lazy” to the thumbnail and above the fold images.

I added this code with ambition to disable lazy loading for posts with the print query:

if (isset($_GET['print']) && ($_GET['print'] == 1)) {
add_filter('get_image_tag_class','et_add_image_class');
}
function et_add_image_class ($class){
    $class .= ' skip-lazy';
    return $class;
}

But the class gets overrided by W3 Total Cache.

Please how can I add the classes to all images and not have W3TC override them? Thanks in advance.

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