We have a situation where our contrib modules are being loaded for the anonymous user, but they are not needed. As a result, we are seeing higher page load times. We tried using hook_js_alter in a custom module with the code below. What is the proper way to not load the js files we don't need for the anonymous user?

mymodule_js_alter($javascript) {

  $javascript['somefile']['scope']=bottom; //region for bottom of the page


Current code:

function mymodule_js_alter(&$javascript) {


2 Answers 2


If you don't want to load your JS in anonymous user, check the user if its logged in then load the JS file if its true. use user_is_logged_in() to check if user is logged in, place it inside your hook_preprocess_page().


  $theme_path = drupal_get_path('theme', 'zen');
  // This will load only in authenticated user.
  if(user_is_logged_in()) {
    drupal_add_js($theme_path . '/plugins/jQuery/jquery-2.2.3.min.js');

You can use it like:

 * Implements hook_js_alter().
function hook_js_alter(&$javascript) {
// Removes the js for anonymous users.
  if(user_is_anonymous()) {  
  • I tried using the code above (even after cache clear) and it did not work. For the anonymous user it was still loading the js file I wanted to exclude. What I did was I logged out and opened incognito mode, but still found the JS to be loaded for anonymous users. Are there any other steps I am missing? Commented Aug 29, 2016 at 20:24
  • Paste your code here, then will be able to tell you.
    – Love Huria
    Commented Aug 30, 2016 at 9:41
  • I have added it to the description. Commented Aug 31, 2016 at 3:15

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