We have a custom module that has a JS library that we want to load in the <head> tag as the very first item even before all the normal Drupal JS files. All other libraries are loaded through mytheme.libraries.yml.

How can I load the library (mymodule/myscript) so that it loads as the first <script> tag in the <head>?

What we tried:


function  mymodule_page_attachments(array &$page) {
  $attachments['#attached']['library'][] = 'mymodule/myscript';


  version: 1.x
  header: true
    /path/to/file: { external: true, weight: -200 }

Current problem:

  <script>myscript is loaded here</script>


  <script>myscript is loaded here</script>
  • 1
    You can user hook_page_attachments() in which you can attach your JS library in $page['#attached']['html_head'][]. For more info check this link: Click here
    – Manav
    Commented Jul 12, 2018 at 7:48
  • @Manav the link you shared was able to get me my answer i seeked, I added my answer below. Commented Jul 12, 2018 at 19:39

1 Answer 1


Using @Manav's link, i was able to get to this solution that worked.

function mymodule_page_attachments(&$attachments) {
  $custom_script = [
    '#type' => 'html_tag',
    '#tag' => 'script',
    '#attributes' => [
      'src' => 'path/to/file.js',
    '#weight' => -200, // this allowed me to do what i needed

  $attachments['#attached']['html_head'][] = [$custom_script, 'custom_script_key'];

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