For some reason I got the following error : Unhandled Runtime Error SyntaxError: Invalid or unexpected token I had to change the code to : <Script strategy="lazyOnload">{` window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config','${process.env.NEXT_PUBLIC_GOOGLE_ANALYTICS}'); `} </Script> to fix the error. I could have said that your code has an issue but then your video did not show any issues.