From 235ae5b8b497546450b6810a1d72a5b2d1f9acec Mon Sep 17 00:00:00 2001
From: Lauren Hitchon <lauren@hitchon.me>
Date: Tue, 6 Aug 2024 10:51:50 +1000
Subject: [PATCH] fix/GA4-tag (#445)

* Update gulpfile.js
---
 gulpfile.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/gulpfile.js b/gulpfile.js
index 666b7675..0fdc9aec 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -309,8 +309,15 @@ function renamePathForProd() {
 
 function addAnalytics() {
   return src(`${config.dir.build}/**/*.html`)
-    .pipe(inject.before('</head>', '<script async src="https://www.googletagmanager.com/gtag/js?id=G-TMEHXHFJXJ"></script>\n'))
-    .pipe(inject.before('</head>', "<script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments);}gtag('js', new Date());gtag('config', 'G-TMEHXHFJXJ');</script>\n"))
+    .pipe(inject.after('<head>', `<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-P2NKBBJZ');</script>
+`))
+.pipe(inject.after('<body>', `<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-P2NKBBJZ"
+height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
+  `))
     .pipe(dest(config.dir.build))
 }  
 
