[WordPress]Contact Form 7で完了ページの遷移先を指定

functions.php

Contact Form 7で送信完了後thanks.htmlページへ遷移

add_action( 'wp_footer', 'contact_form7_send_ok' );
function contact_form7_send_ok() {
?>
<script type="text/javascript">
document.addEventListener( 'wpcf7mailsent', function( event ) {
	if ( 'Contact Form 7のフォームID' == event.detail.contactFormId ) {
		location.replace("/thanks.html");
	}
}, false );
</script>
<?php
}