WooCommerce + Jetpack: Exclude Image From “Lazy Load”

If you don’t use an “Image Lazy Load” plugin, it’s time you install one. And if you happen to pick Jetpack’s free Lazy Load module, you probably did the right thing.

However, since I installed Jetpack Lazy Load, I noticed a little “jump” in my Storefront theme header section, where in fact there is an image – my Business Bloomer logo. The same might apply to any WooCommerce image: a category thumbnail, a single product featured image, a cart icon in the header, a homepage hero image, and so on.

Thankfully Jetpack has a useful “filter” you can tap into in order to exclude image classes from lazy loading (yes, I found this out today, it’s not that I know everything!). So, here’s the fix. Enjoy 🙂

Jetpack: exclude an image from “Lazy Load” functionality

PHP Snippet: Exclude Image e.g. Logo From Jetpack Lazy Load

/**
 * @snippet       Avoid Lazy Loading an Image - Jetpack
 * @how-to        Get CustomizeWoo.com FREE
 * @author        Rodolfo Melogli
 * @compatible    WooCommerce 5
 * @donate $9     https://businessbloomer.com/bloomer-armada/
 */

add_filter( 'jetpack_lazy_images_blacklisted_classes', 'bbloomer_exclude_custom_logo_class_from_lazy_load', 9999 );

function bbloomer_exclude_custom_logo_class_from_lazy_load( $classes ) {
	$classes[] = 'custom-logo';
	return $classes;
}

Where to add this snippet?

You can place PHP snippets at the bottom of your child theme functions.php file (delete "?>" if you have it there). CSS, on the other hand, goes in your child theme style.css file. Make sure you know what you are doing when editing such files - if you need more guidance, please take a look at my free video tutorial "Where to Place WooCommerce Customization?"

Does this snippet (still) work?

Please let me know in the comments if everything worked as expected. I would be happy to revise the snippet if you report otherwise (please provide screenshots). I have tested this code with Storefront theme, the WooCommerce version listed above and a WordPress-friendly hosting on PHP 7.3.

If you think this code saved you time & money, feel free to join 14,000+ WooCommerce Weekly subscribers for blog post updates or 250+ Business Bloomer supporters for 365 days of WooCommerce benefits. Thank you in advance :)

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Rodolfo Melogli

Business Bloomer Founder

Author, WooCommerce expert and WordCamp speaker, Rodolfo has worked as an independent WooCommerce freelancer since 2011. His goal is to help entrepreneurs and developers overcome their WooCommerce nightmares. Rodolfo loves travelling, chasing tennis & soccer balls and, of course, wood fired oven pizza.

8 thoughts on “WooCommerce + Jetpack: Exclude Image From “Lazy Load”

  1. Hello,

    Thank you for this amazing script.

    I have one question, if I need to exclude several classes using the same function for example:
    custom-logo
    custom-mobile-logo
    category-image
    woocommerce-products-header

    How should I include them in the below section ?
    $classes[] = ‘custom-logo’;

    Regards,

    1. Hi Sally, you can try with (untested):

      $classes += array( 'custom-logo', 'category-image' );
  2. Hello Rodolfo,
    Thank you for this snippet, but now (12/2020) “jetpack_lazy_images_blacklisted_classes” is obsolete,
    you should use “jetpack_lazy_images_blocked_classes” instead.
    Best regards,
    Oly

    1. Excellent!

    1. Welcome!

  3. Hi Rodolfo,

    Thanks! This really helped me. You don’t need to specify priority and arguments.
    Default priority is 10 and default arguments accepted by an filter is 1.

    1. Hey Remzi, thanks for that! I wanted to use 999 to delay the call. If you add priority, you also need to add the arguments, however I’m not 100% sure about that part. I usually put none or both, it comes easier when I code. Cheers anyway 🙂

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