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Resolved katmacau
(@katmacau)

2 years, 11 months ago

Hello. I discovered a issue that happened only after recent updates. When ‘Defer Render-blocking JS’ is enabled, it threw a JS error:

wp-util.min.js:2 Uncaught ReferenceError: _ is not defined

This error then meant that Woocommerce’s add-to-cart-variation.js could not fire and customers who were not logged in, could not add variable products to the cart. If you were logged in, it still worked.

Disabling that setting fixed the issue but that is not a long term solution.

Viewing 4 replies - 1 through 4 (of 4 total)

Plugin Support Vladimir Trandev
(@vtrandev)

2 years, 11 months ago

Hello @katmacau,

You can exclude certain scripts from “Defer Render-blocking JavaScript” via the exclude dropdown in the plugin’s settings:

https://www.siteground.com/tutorials/wordpress/sg-optimizer/frontend-optimization/

However, you can use SiteGround Optimizer filter to exclude scripts handlers from asynchronous loading. More information about the filter you can use is available in the plugin’s readme file or directly at:

https://www.ads-software.com/plugins/sg-cachepress/

Regards,
Vladimir

Plugin Support Gergana Petrova
(@gpetrova)

2 years, 11 months ago

Hello @katmacau,

Since we haven’t heard back from you in the past couple of days we will be marking the case as Resolved. You will still be able to post an update here in case additional assistance is needed.

Best Regards,
Gergana Petrova

Thread Starter katmacau
(@katmacau)

2 years, 11 months ago

Thanks. I had a look but it only listed 2 JS files to choose from. I need to make sure that ‘wp-util.min.js’ and ‘add-to-cart-variation.js’ are not deferred.
Plugin Support Vladimir Trandev
(@vtrandev)

2 years, 11 months ago
Hello again,

You can exclude script/s from being loaded asynchronously using the filter we’ve designed for that purpose. Here’s an example of the code which you can add to your theme’s functions.php file:
```
add_filter( 'sgo_js_async_exclude', 'js_async_exclude' );
function js_async_exclude( $exclude_list ) {
    $exclude_list[] = 'script-handle';
    $exclude_list[] = 'script-handle-2';

    return $exclude_list;
}
```
For more information about how to find its handler, please check the following thread:

https://www.ads-software.com/support/topic/how-to-use-sg-optimizers-filters-procedure/

Viewing 4 replies - 1 through 4 (of 4 total)

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