Redirection Using wpcf7mailsent

Hi. 

I am trying to figure out where i am going wrong. I use Oxygen Builder so no child theme. I use code snippets and use this code.



<?php

add_action( 'wp_footer', function() {

?>

<script>

var ready = (callback) => {

if (document.readyState != "loading") callback();

else document.addEventListener("DOMContentLoaded", callback);

}

ready(() => {

document.addEventListener( 'wpcf7mailsent', function( event ) {

location = 'https://www.cassies.com.au/thank-you/';

}, false );

});

</script>

<?php

},9999);

I have this active. Do i need to change the code within the form itself from [submit "Send"] to [wpcf7mailsent "Send"] or how do i add the code to the form?

I have looked everywhere to find a video tutorial biut couldnt find anything. I have looked at all the dom event links in C7F as well.

Any help gratefully received 

Thanks

Danny

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