Wrong type interface: PaymentMethodData

[1000ch]

interface PaymentMethodData {
    data?: any;
    supportedMethods?: string[];
}

should be

interface PaymentMethodData {
    data?: any;
    supportedMethods?: string;
}

according to https://www.w3.org/TR/payment-request/#paymentmethoddata-dictionary.

[mhegazy]

PRs welcomed. You can find more information about contributing lib.d.ts fixes at https://github.com/Microsoft/TypeScript/blob/master/CONTRIBUTING.md#contributing-libdts-fixes.

[1000ch]

My mistake, should not drop old spec immediately.

interface PaymentMethodData {
    data?: any;
    supportedMethods?: string | string[];
}

Fixed on microsoft/TypeScript-DOM-lib-generator#320