https://www.teinacher.de/wp-content/plugins/cf7-redirection/js/wpcf7-redirect-script.js

1jQuery(document).ready(function() {
2    wpcf7_redirect_mailsent_handler();
3});
4
5function wpcf7_redirect_mailsent_handler() {
6	document.addEventListener( 'wpcf7mailsent', function( event ) {
7		form = wpcf7_redirect_forms [ event.detail.contactFormId ];
8
9		// Script to run after sent.
10		if ( form.after_sent_script ) {
11			form.after_sent_script = htmlspecialchars_decode( form.after_sent_script );
12			eval( form.after_sent_script );
13		}
14
15		// Set redirect URL
16		if ( form.use_external_url && form.external_url ) {
17			redirect_url = form.external_url;
18		} else {
19			redirect_url = form.thankyou_page_url;
20		}
21
22		// Build http query
23		if ( form.http_build_query ) {
24			temp_http_query 	 = jQuery.param( event.detail.inputs, true );
25			http_query = temp_http_query.replace(new RegExp('\\+', 'g'), '%20');
26			redirect_url = redirect_url + '?' + decodeURIComponent(http_query);
27		} else if ( form.http_build_query_selectively ) {
28			http_query = '?';
29			selective_fields = form.http_build_query_selectively_fields.split(' ').join('');
30			event.detail.inputs.forEach( function(element, index) {
31				if ( selective_fields.indexOf( element.name ) != -1 ) {
32					http_query += element.name + '=' + element.value + '&';
33				}
34			});
35
36			http_query = http_query.slice(0, -1);
37			redirect_url = redirect_url + decodeURIComponent(http_query);
38		} 
39
40		// Redirect
41		if ( redirect_url ) {

42			if ( ! form.open_in_new_tab ) {
43				// Open in current tab
44				if ( form.delay_redirect ) {
45					setTimeout(function() {
46						location.href = redirect_url;
47					}, form.delay_redirect);
48				} else {
49					location.href = redirect_url;
50				}
51			} else {
52				// Open in external tab
53				if ( form.delay_redirect ) {
54					setTimeout(function() {
55						window.open( redirect_url );
56					}, form.delay_redirect);
57				} else {
58					window.open( redirect_url );
59				}
60			}
61		}
62
63	}, false );
64}
65
66function htmlspecialchars_decode( string ) {
67	var map = {
68        '&': '&',
69        '&': "&",
70        '&lt;': '<',
71        '&gt;': '>',
72        '&quot;': '"',
73        '&#039;': "'",
74        '&#8217;': "’",
75        '&#8216;': "‘",
76        '&#8211;': "–",
77        '&#8212;': "—",
78        '&#8230;': "…",
79        '&#8221;': '”'
80    };
81
82    return string.replace(/\&[\w\d\#]{2,5}\;/g, function(m) { return map[m]; });
83}