Ensure your code syntax is correct, especially that all attributes are capitalized or in lower-case correctly.

Example

Passing card and CardElement will result in this error. The cardElement attribute is incorrectly capitalized. Instead, pass card and cardElement to createPaymentMethod.

Additional Information

• JavaScript is a case-sensitive language. If you are passing a parameter comprised of two words together, the first letter of the first word should be lowercase and the first letter of the second word should be uppercase.

  • Example: BankName would be bankName, and HidePostalCode would be hidePostalCode.