Is it possible to add nonce tag to inline scripts for wordpress sites using ? I have used a filter script_loader_tag + function for adding tags before but it adds nonce tag only to with src tag. Unfortunately I cant add nonce tag to inline javascript automatically :( So I need a script for some filter which would add nonce tag automatically to tag.

  • Can you elaborate what you mean? Do you want a nonce value available as a JS variable? Jun 2, 2022 at 8:38
  • Its easy I want only one thing. Add nonce tag to inline script. Example I want have inline script <script>some script</script> and I want to add nonce tag for CSP ( Content Security Policy ) to script tag like this: <script nonce="somevalue">
    – Macsurf
    Jun 3, 2022 at 18:45
  • 2
    WordPress has a surprising amount of inline scripts and styles. I've tried to get a CSP (Content Security Policy) ready for a WP site and have been stymied. Here's the Trac ticket I opened on the topic a couple versions ago.
    – Pat J
    Jun 3, 2022 at 19:11
  • @Macsurf As from the trac ticket @Pat J created, you can use the script_loader_tag filter for the time being. If the question is reopened I'll post an answer. Jun 3, 2022 at 23:07

1 Answer 1


You can use the script_loader_tag filter:

function wpse_406351_script_tag_nonce( $tag, $handle ) {
    if ( $handle === 'id_of_script' /* handle used in wp_enqueue_script/wp_register_script */ ) {
        $nonce = wp_create_nonce(); // Or whatever your nonce value should be

        $tag = str_replace( '<script ', "<script nonce='$nonce' ", $tag );

    return $tag;

add_filter( 'script_loader_tag', 'wpse_406351_script_tag_nonce', 10, 2 );

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