После отладки я обнаружил, что ошибка была в том, что мой Javascript был до HTML. Javascript должен быть размещен ниже html, чтобы поля формы работали правильно:
<script src="https://js.stripe.com/v3/"></script>
<body>
<form>
<div class="group">
<label>
<span>Name</span>
<input name="cardholder-name" class="field" placeholder="Jane Doe" />
</label>
<label>
<span>Phone</span>
<input class="field" placeholder="(123) 456-7890" type="tel" />
</label>
</div>
<div class="group">
<label>
<span>Card</span>
<div id="card-element" class="field"></div>
</label>
</div>
<button type="submit">Pay $25</button>
<div class="outcome">
<div class="error"></div>
<div class="success">
Success! Your Stripe token is <span class="token"></span>
</div>
</div>
</form>
</body>
<script>
var stripe = Stripe('pk_test_XXXXXXXXXXXXXXXX');
var elements = stripe.elements();
// Custom styling can be passed to options when creating an Element.
var style = {
base: {
// Add your base input styles here. For example:
fontSize: '16px',
color: "#32325d",
}
};
var card = elements.create('card', {
style: {
base: {
iconColor: '#666EE8',
color: '#31325F',
lineHeight: '40px',
fontWeight: 300,
fontFamily: 'Helvetica Neue',
fontSize: '15px',
'::placeholder': {
color: '#CFD7E0',
},
},
}
});
card.mount('#card-element');
function setOutcome(result) {
var successElement = document.querySelector('.success');
var errorElement = document.querySelector('.error');
successElement.classList.remove('visible');
errorElement.classList.remove('visible');
if (result.token) {
// Use the token to create a charge or a customer
// https://stripe.com/docs/charges
successElement.querySelector('.token').textContent = result.token.id;
successElement.classList.add('visible');
} else if (result.error) {
errorElement.textContent = result.error.message;
errorElement.classList.add('visible');
}
}
card.on('change', function(event) {
setOutcome(event);
});
document.querySelector('form').addEventListener('submit', function(e) {
e.preventDefault();
var form = document.querySelector('form');
var extraDetails = {
name: form.querySelector('input[name=cardholder-name]').value,
};
stripe.createToken(card, extraDetails).then(setOutcome);
});
</script>