fix: ensure cardfield flow rejects only when err is not null

Author: mchoun

src/three-domain-secure/component.jsx

@@ -115,9 +115,17 @@ export function getThreeDomainSecureComponent(): TDSComponent {
         onSuccess: {
           type: "function",
           alias: "onContingencyResult",
-          decorate: ({ value, onError }) => {
+          decorate: ({ props, value, onError }) => {
             return (err, result) => {
-              if (err) {
+              const isCardFieldFlow = props.userType === "UNBRANDED_GUEST";
+
+              // HostedFields ONLY rejects when the err object is not null. The below implementation ensures that CardFields follows the same pattern.
+
+              const hasError = isCardFieldFlow
+                ? err
+                : err || result?.success === false;
+
+              if (hasError) {
                 return onError(err);
               }