I require assistance with identifying the issue in the JavaScript code provided below. I am working with a Bootstrap 5 form where the submission is not being prevented if the fields are left blank or invalid. While the HTML/CSS validation works correctly for invalid fields, the submission is still allowed.
My JavaScript skills are not very advanced, so I would greatly appreciate any help!
(function () {
"use strict";
// Select all forms that require custom Bootstrap validation
let forms = document.querySelectorAll(".needs-validation");
// Prevent form submission for invalid forms
Array.from(forms).forEach(function (form) {
form.addEventListener("submit", function (event) {
if (!form.checkValidity()) {
event.preventDefault();
event.stopPropagation();
}
form.classList.add("was-validated");
}, false
);
});
forms.forEach( function(e) {
e.addEventListener('submit', function(event) {
event.preventDefault();
let thisForm = this;
let action = thisForm.getAttribute('action');
let recaptcha = thisForm.getAttribute('data-recaptcha-site-key');
if( ! action ) {
displayError(thisForm, 'The form action property is not set!')
return;
}
thisForm.querySelector('.loading').classList.add('d-block');
thisForm.querySelector('.error-message').classList.remove('d-block');
thisForm.querySelector('.sent-message').classList.remove('d-block');
let formData = new FormData( thisForm );
if ( recaptcha ) {
if(typeof grecaptcha !== "undefined" ) {
grecaptcha.ready(function() {
try {
grecaptcha.execute(recaptcha, {action: 'php_email_form_submit'})
.then(token => {
formData.set('recaptcha-response', token);
php_email_form_submit(thisForm, action, formData);
})
} catch(error) {
displayError(thisForm, error)
}
});
} else {
displayError(thisForm, 'The reCaptcha javascript API url is not loaded!')
}
} else {
php_email_form_submit(thisForm, action, formData);
}
});
});
function php_email_form_submit(thisForm, action, formData) {
fetch(action, {
method: 'POST',
body: formData,
headers: {'X-Requested-With': 'XMLHttpRequest'}
})
.then(response => {
if( response.ok ) {
return response.json()
} else {
throw new Error(`${response.status} ${response.statusText} ${response.url}`);
}
})
.then(data => {
thisForm.querySelector('.loading').classList.remove('d-block');
if (data.type === 'success') {
thisForm.querySelector('.sent-message').classList.add('d-block');
thisForm.reset();
} else {
throw new Error(data ? data : 'Form submission failed and no error message returned from: ' + action);
}
})
.catch((error) => {
displayError(thisForm, error);
});
}
function displayError(thisForm, error) {
thisForm.querySelector('.loading').classList.remove('d-block');
thisForm.querySelector('.error-message').innerHTML = error;
thisForm.querySelector('.error-message').classList.add('d-block');
}
})();