React/Typescript not recognizing iframe properties

As you can see in the lib.d.ts file, it should be frameBorder, not frameborder.

Don't worry, it took me a while to spot it too!

See the Following Properties of typed files...

    interface IframeHTMLAttributes<T> extends HTMLAttributes<T> {
        allow?: string;
        allowFullScreen?: boolean;
        allowTransparency?: boolean;
        frameBorder?: number | string;
        height?: number | string;
        marginHeight?: number;
        marginWidth?: number;
        name?: string;
        sandbox?: string;
        scrolling?: string;
        seamless?: boolean;
        src?: string;
        srcDoc?: string;
        width?: number | string;
    }