Fix stimulus-bundle recipe (#1468)

Author: nicolas-grekas

symfony/stimulus-bundle/2.24/assets/controllers/csrf_protection_controller.js

@@ -1,7 +1,9 @@
 const nameCheck = /^[-_a-zA-Z0-9]{4,22}$/;
-const tokenCheck = /^[-_\/+a-zA-Z0-9]{24,}$/;
+const tokenCheck = /^[-_/+a-zA-Z0-9]{24,}$/;
 
 // Generate and double-submit a CSRF token in a form field and a cookie, as defined by Symfony's SameOriginCsrfTokenManager
+// Use `form.requestSubmit()` to ensure that the submit event is triggered. Using `form.submit()` will not trigger the event
+// and thus this event-listener will not be executed.
 document.addEventListener('submit', function (event) {
     generateCsrfToken(event.target);
 }, true);
@@ -33,8 +35,8 @@ export function generateCsrfToken (formElement) {
     if (!csrfCookie && nameCheck.test(csrfToken)) {
         csrfField.setAttribute('data-csrf-protection-cookie-value', csrfCookie = csrfToken);
         csrfField.defaultValue = csrfToken = btoa(String.fromCharCode.apply(null, (window.crypto || window.msCrypto).getRandomValues(new Uint8Array(18))));
-        csrfField.dispatchEvent(new Event('change', { bubbles: true }));
     }
+    csrfField.dispatchEvent(new Event('change', { bubbles: true }));
 
     if (csrfCookie && tokenCheck.test(csrfToken)) {
         const cookie = csrfCookie + '_' + csrfToken + '=' + csrfCookie + '; path=/; samesite=strict';