Такой код правильно будет выглядеть в order-confirmation.tpl?
!-- Facebook Pixel Code -->
{literal}
<script>
!function(f,b,e,v,n,t,s){if(f.fbq)return;n=f.fbq=function(){n.callMethod?
n.callMethod.apply(n,arguments):n.queue.push(arguments)};if(!f._fbq)f._fbq=n;
n.push=n;n.loaded=!0;n.version='2.0';n.queue=[];t=b.createElement(e);t.async=!0;
t.src=v;s=b.getElementsByTagName(e)[0];s.parentNode.insertBefore(t,s)}(window,
document,'script','//connect.facebook.net/en_US/fbevents.js');
fbq('init', '1445570592421898');
fbq('track', "PageView");
fbq('track', 'Purchase', {value: {/literal}'{$_value}'{literal}, currency: 'EUR'});
</script>
<noscript><img height="1" width="1" style="display:none"
src="https://www.facebook.com/tr?id=1445570592421898&ev=PageView&noscript=1"
/></noscript>{/literal}
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