Unwanted coupon field and broken payment link after updating to Craft 3.7.47

[romainpoirier]

Description

After updating from Craft 3.7.45.2 to 3.7.47 using Stripe Payments 4.0.4 I ran this issues:

1. An unwanted coupon field is added, using the class .enupal-hidden (but this field is not hidden);
2. A wrong URL is target when clicking on the payment button: ends up in a 404 (redirect to homepage) without the redirect to the Stripe form;

This is the stack trace of 2.:

yii\web\NotFoundHttpException: Unable to process the Payment in/vendor/enupal/stripe/src/controllers/StripeController.php:75
Stack trace:
#0 [internal function]: enupal\stripe\controllers\StripeController->actionSaveOrder()
#1/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#2/vendor/yiisoft/yii2/base/Controller.php(178): yii\base\InlineAction->runWithParams(Array)
#3/vendor/yiisoft/yii2/base/Module.php(552): yii\base\Controller->runAction('save-order', Array)
#4/vendor/craftcms/cms/src/web/Application.php(293): yii\base\Module->runAction('enupal-stripe/s...', Array)
#5/vendor/craftcms/cms/src/web/Application.php(602): craft\web\Application->runAction('enupal-stripe/s...', Array)
#6/vendor/craftcms/cms/src/web/Application.php(272): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#7/vendor/yiisoft/yii2/base/Application.php(384): craft\web\Application->handleRequest(Object(craft\web\Request))
#8/htdocs/index.php(26): yii\base\Application->run()
#9 {main}

And the code found at /vendor/enupal/stripe/src/controllers/StripeController.php:75:

// Stripe Checkout or Stripe Elements CC
$order = StripePlugin::$app->orders->processPayment($postData);
 
if (is_null($order)) {
    throw new NotFoundHttpException("Unable to process the Payment");
}

Updating to the latest version, Stripe Payments 4.0.5, does not fix this. The only way to revert this was to downgrade to Craft 3.7.45.2.

After downgrading, everything works fine as previously: no unwanted coupon field, and no broken payment link.

Additional info

• Craft version: 3.7.47
• PHP version: 7.4.25
• Database driver & version: MySQL 5.7.34
• Plugin version: 4.0.4 + 4.0.5
• Is SCA and Stripe Checkout enabled?: Yes