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Add a remark to submit-eventListener #1418

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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,8 @@ const nameCheck = /^[-_a-zA-Z0-9]{4,22}$/;
const tokenCheck = /^[-_\/+a-zA-Z0-9]{24,}$/;

// 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);
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