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Lately working with svelte in a project. The generated HTML uses Javascript with link and modulepreload:

<!doctype html>
<html>
<head>
    ...
    <link rel="modulepreload" href="./_app/immutable/entry/start.ed2a2ab5.js">
    <link rel="modulepreload" href="./_app/immutable/chunks/scheduler.8a566589.js">
    <link rel="modulepreload" href="./_app/immutable/chunks/singletons.a436eea2.js">
    <link rel="modulepreload" href="./_app/immutable/chunks/index.220c2c81.js">
    <link rel="modulepreload" href="./_app/immutable/entry/app.e682a49a.js">
    <link rel="modulepreload" href="./_app/immutable/chunks/index.95a0b3d5.js">
    <link rel="modulepreload" href="./_app/immutable/nodes/0.77b736d5.js">
    <link rel="modulepreload" href="./_app/immutable/nodes/2.87586eb9.js">
</head>
<body>
    ...
    <script>
        // some scripts here to use the preloaded module code.
    </script>
</body>
</html>

How do I declare in mymodule.libraries.yml so files can be displayed as this link format?

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1
  • Libraries don't support arbitrary tags, just stylesheets and scripts. It's extendable if you're so inclined, but it may be (quite a bit) easier to use hook_page_attachments_alter() and add html_head items instead, e.g. drupal.stackexchange.com/questions/301098/… Commented Jan 11, 2024 at 16:45

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