It uses polyfill.io which is no longer active and has been taken over by malicious actors.
That's where the sign in request is coming from
That's where the sign in request is coming from
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
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-NZXZ6MK');</script><!-- End Google Tag Manager -->
Causing the top of the page show the script and nobody from that site noticing it.
Blender Sensor Simulation www.blensor.org