JavaScript not working in header file

[ClarusAD]

Hello,
When i write some JS code in the header file
flatpress/fp-interface/themes/leggero/header.tpl
For example :

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{literal}<script> alert() </script>{/literal}

That doesn't work, and i don't understand why…

Can someone help me ?
Thank-you in advance

[fraenkiman]

Hello ClarusAD,

Try using

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{literal}<script nonce="{/literal}{$smarty.const.RANDOM_HEX}{literal}">…</script>{/literal}

Or with externally integrated JS:

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<script nonce="{$smarty.const.RANDOM_HEX}" src="{$smarty.const.BLOG_BASEURL}fp-interface/themes/leggero/res/custom.js" defer></script>

Otherwise, your browser will block the execution of the inline script.

Screenshot 2025-10-06 024126.png (102.38 KiB) Viewed 199 times

Have a great start to the new week.
Best regards,
Frank

[ClarusAD]

Thank-you Fraenkiman, you're a king ! The soluce was to add the "nonce" part :

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{literal}<script nonce="{/literal}{$smarty.const.RANDOM_HEX}{literal}">…</script>{/literal}