Title: Defer Javascript with Master Slider
Last modified: August 22, 2016

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# Defer Javascript with Master Slider

 *  [Stephen B](https://wordpress.org/support/users/wordpmoon12/)
 * (@wordpmoon12)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/defer-javascript-with-master-slider/)
 * I am trying to optimise my website by deferring Javascript.
    I’m using this code
   on functions.php
 *     ```
       if (!(is_admin() )) {
         function defer_parsing_of_js ( $url ) {
           if ( FALSE === strpos( $url, '.js' ) ) return $url;
           if ( strpos( $url, 'jquery.js' ) ) return $url;
           return "$url' defer ";
         }
         add_filter( 'clean_url', 'defer_parsing_of_js', 11, 1 );
       }
       ```
   
 * Everything else (other plugins) is working fine except Master Slider, it disappears
   from the page once I activate Defer Javascript.
    What should I do?
 * [https://wordpress.org/plugins/master-slider/](https://wordpress.org/plugins/master-slider/)

The topic ‘Defer Javascript with Master Slider’ is closed to new replies.

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## Tags

 * [async](https://wordpress.org/support/topic-tag/async/)
 * [defer](https://wordpress.org/support/topic-tag/defer/)
 * [javascript](https://wordpress.org/support/topic-tag/javascript/)

 * 0 replies
 * 1 participant
 * Last reply from: [Stephen B](https://wordpress.org/support/users/wordpmoon12/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/defer-javascript-with-master-slider/)
 * Status: not resolved