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I am currently using the Amazon Auto Links plugin and have noticed a significant performance issue. The plugin’s CSS and JavaScript files are being loaded on all pages of my site, even when the [amazon_auto_links] shortcode is not present. This is causing unnecessary resource usage and a drop in page speed.

To optimize my website’s performance, I want to ensure that these assets are loaded only on pages or posts where the [amazon_auto_links] shortcode is actually used.

Here is what I have tried so far:

/**
 * Caricamento condizionale degli asset di Amazon Auto Links.
 * Carica i file CSS e JS solo se lo shortcode [amazon_auto_links] è presente nella pagina o nel post.
 */
function conditional_amazon_auto_links_assets() {
    global $post;

    // Controlla se il contenuto contiene lo shortcode [amazon_auto_links]
    if ( isset( $post->post_content ) && has_shortcode( $post->post_content, 'amazon_auto_links' ) ) {
        // Carica i file CSS necessari
        wp_enqueue_style(
            'amazon-auto-links-list-style',
            plugins_url( 'amazon-auto-links/template/list/style.min.css' ),
            array(),
            '1.4.1'
        );
        wp_enqueue_style(
            'amazon-auto-links-common-style',
            plugins_url( 'amazon-auto-links/template/_common/style.min.css' ),
            array(),
            '5.4.3'
        );
        
        // Carica i file JS necessari
        wp_enqueue_script(
            'amazon-auto-links-pointer-tooltip',
            plugins_url( 'amazon-auto-links/include/core/main/asset/js/pointer-tooltip.min.js' ),
            array( 'jquery' ),
            null,
            true
        );
        wp_enqueue_script(
            'amazon-auto-links-product-tooltip',
            plugins_url( 'amazon-auto-links/template/_common/js/product-tooltip.min.js' ),
            array( 'jquery' ),
            '1.0.0',
            true
        );
        wp_enqueue_script(
            'amazon-auto-links-ajax-unit-loading',
            plugins_url( 'amazon-auto-links/include/core/component/unit/asset/js/ajax-unit-loading.min.js' ),
            array( 'jquery' ),
            '6.7.1',
            true
        );
        wp_enqueue_script(
            'amazon-auto-links-image-preview',
            plugins_url( 'amazon-auto-links/template/_common/js/product-image-preview.min.js' ),
            array( 'jquery' ),
            '1.0.0',
            true
        );
        wp_enqueue_script(
            'amazon-auto-links-now-retrieving-updater',
            plugins_url( 'amazon-auto-links/include/core/component/unit/asset/js/now-retrieving-updater.min.js' ),
            array( 'jquery' ),
            '6.7.1',
            true
        );
    }
}
add_action( 'wp_enqueue_scripts', 'conditional_amazon_auto_links_assets' );

Unfortunately, this solution does not work. The CSS and JS files from Amazon Auto Links are still being loaded globally, regardless of whether the [amazon_auto_links] shortcode is present or not.Questions:

1. How can I prevent the global loading of the plugin’s CSS and JS assets?
2. How can I ensure these assets are loaded only on pages/posts with the [amazon_auto_links] shortcode?

This issue is negatively impacting my site’s speed and unnecessarily consuming resources. Any guidance or recommendations would be greatly appreciated.

Thank you in advance for your support!

Luca Tacchetti

The sample url: https://mywebsite.com/pxpdflip_stream/204, (where 204 will vary)

The url redirection is defined in the htaccess as:

RewriteRule ^pxpdflip_stream/([^/]+)[/]?$ /wp-content/themes/mytheme/lib/FlipBook/1.0/lib/streamfile.php?ao=$1 [QSA,L]

So far, I have added an entry like this in the ‘Never minify the following pages’ section of ‘Performance > Minify > Advanced’ :

/pxpdflip_stream/.*

But it is not working. The page outputs a 500 error. Once the plugin is disabled, it works fine Can you please help?

PS: I want to exclude these pages from all types of caching.

file_get_contents(/home/deb45628n2/domains/chocoladeverkopers.nl/public_html/chocolade/wp-content/cache/minify/864fa/default.include.js.id_meta): Failed to open stream: No such file or directory+

file_get_contents(/home/deb45628n2/domains/chocoladeverkopers.nl/public_html/chocolade/wp-content/cache/minify/864fa/default.include.css.id_meta): Failed to open stream: No such file or directory

if i disable minify it is ok. i use minify and page cache (disk) and object cache (redis), but not sure what to test – i have tried disabling several other plugins as well but no luck there. Maybe it’s possible to point me in the right direction..

Any ideas what I could do about this?

Thanks for your help.