Drupal 7: how do I add the async attribute to an external JS script when using drupal_add_js?










1














I've tried:



 drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
'type' => 'external',
'async' => TRUE
]);


and



 drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
'type' => 'external',
'async' => 'async'
]);


With no results.



Would any know how I could achieve this?










share|improve this question


























    1














    I've tried:



     drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
    'type' => 'external',
    'async' => TRUE
    ]);


    and



     drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
    'type' => 'external',
    'async' => 'async'
    ]);


    With no results.



    Would any know how I could achieve this?










    share|improve this question
























      1












      1








      1







      I've tried:



       drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
      'type' => 'external',
      'async' => TRUE
      ]);


      and



       drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
      'type' => 'external',
      'async' => 'async'
      ]);


      With no results.



      Would any know how I could achieve this?










      share|improve this question













      I've tried:



       drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
      'type' => 'external',
      'async' => TRUE
      ]);


      and



       drupal_add_js('http://somesite.com/pages/scripts/0080/8579.js', [
      'type' => 'external',
      'async' => 'async'
      ]);


      With no results.



      Would any know how I could achieve this?







      javascript drupal drupal-7 drupal-hooks






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 12 '18 at 5:34









      MeltingDogMeltingDog

      4,83924105188




      4,83924105188






















          1 Answer
          1






          active

          oldest

          votes


















          1














          You can't achieve this just by specifying the option because drupal_add_js() does not support async attribute.



          It is recommended to use defer which is (imho) better because it doesn't block HTML parsing.



          • async : script fetched asynchronously, then HTML parsing is paused to execute the script, then parsing resumes.


          • defer : script fetched asynchronously and executed only after HTML parsing is done.


          However, if you really need the async attribute, you can implement the hook_preprocess_html_tag to alter the theme variables, like so :



          function moduleortheme_preprocess_html_tag(&$variables) empty($el['#attributes']['src'])) 
          return;


          # External scripts to load asynchronously
          $async = [
          'http://somesite.com/pages/scripts/0080/8579.js',
          #...
          ];

          if (in_array($el['#attributes']['src'], $async))
          $el['#attributes']['async'] = 'async';







          share|improve this answer




















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            1 Answer
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            active

            oldest

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            active

            oldest

            votes






            active

            oldest

            votes









            1














            You can't achieve this just by specifying the option because drupal_add_js() does not support async attribute.



            It is recommended to use defer which is (imho) better because it doesn't block HTML parsing.



            • async : script fetched asynchronously, then HTML parsing is paused to execute the script, then parsing resumes.


            • defer : script fetched asynchronously and executed only after HTML parsing is done.


            However, if you really need the async attribute, you can implement the hook_preprocess_html_tag to alter the theme variables, like so :



            function moduleortheme_preprocess_html_tag(&$variables) empty($el['#attributes']['src'])) 
            return;


            # External scripts to load asynchronously
            $async = [
            'http://somesite.com/pages/scripts/0080/8579.js',
            #...
            ];

            if (in_array($el['#attributes']['src'], $async))
            $el['#attributes']['async'] = 'async';







            share|improve this answer

























              1














              You can't achieve this just by specifying the option because drupal_add_js() does not support async attribute.



              It is recommended to use defer which is (imho) better because it doesn't block HTML parsing.



              • async : script fetched asynchronously, then HTML parsing is paused to execute the script, then parsing resumes.


              • defer : script fetched asynchronously and executed only after HTML parsing is done.


              However, if you really need the async attribute, you can implement the hook_preprocess_html_tag to alter the theme variables, like so :



              function moduleortheme_preprocess_html_tag(&$variables) empty($el['#attributes']['src'])) 
              return;


              # External scripts to load asynchronously
              $async = [
              'http://somesite.com/pages/scripts/0080/8579.js',
              #...
              ];

              if (in_array($el['#attributes']['src'], $async))
              $el['#attributes']['async'] = 'async';







              share|improve this answer























                1












                1








                1






                You can't achieve this just by specifying the option because drupal_add_js() does not support async attribute.



                It is recommended to use defer which is (imho) better because it doesn't block HTML parsing.



                • async : script fetched asynchronously, then HTML parsing is paused to execute the script, then parsing resumes.


                • defer : script fetched asynchronously and executed only after HTML parsing is done.


                However, if you really need the async attribute, you can implement the hook_preprocess_html_tag to alter the theme variables, like so :



                function moduleortheme_preprocess_html_tag(&$variables) empty($el['#attributes']['src'])) 
                return;


                # External scripts to load asynchronously
                $async = [
                'http://somesite.com/pages/scripts/0080/8579.js',
                #...
                ];

                if (in_array($el['#attributes']['src'], $async))
                $el['#attributes']['async'] = 'async';







                share|improve this answer












                You can't achieve this just by specifying the option because drupal_add_js() does not support async attribute.



                It is recommended to use defer which is (imho) better because it doesn't block HTML parsing.



                • async : script fetched asynchronously, then HTML parsing is paused to execute the script, then parsing resumes.


                • defer : script fetched asynchronously and executed only after HTML parsing is done.


                However, if you really need the async attribute, you can implement the hook_preprocess_html_tag to alter the theme variables, like so :



                function moduleortheme_preprocess_html_tag(&$variables) empty($el['#attributes']['src'])) 
                return;


                # External scripts to load asynchronously
                $async = [
                'http://somesite.com/pages/scripts/0080/8579.js',
                #...
                ];

                if (in_array($el['#attributes']['src'], $async))
                $el['#attributes']['async'] = 'async';








                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 13 '18 at 17:07









                EricLavaultEricLavault

                2,2841325




                2,2841325



























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