Redirect Custom Confirmation Page for Google Forms

Add a bit of javascript* to redirect the completed page to a confirmation page** of your choosing:

REPLACE:

<form action="YOUR-EMBEDDED-GOOGLE-SPREADSHEET-LINK" method="POST">

WITH:

<script type="text/javascript">var submitted=false;</script>

<iframe name="hidden_iframe" id="hidden_iframe"

style="display:none;" onload="if(submitted)

{window.location='http://YOUR-THANK-YOU-PAGE-URL';}"></iframe>

<form action="YOUR-EMBEDDED-GOOGLE-SPREADSHEET-LINK" method="post"

target="hidden_iframe" onsubmit="submitted=true;">

*The re-direct script will not work if you have required fields in your form.

Now your custom designed google forms will be redirected to your custom designed confirmation page.