Property typemustmatch not present on `object`

[Vinnl]

TypeScript Version: 2.5.3

Code

const element = <object
        data="some-link.pdf"
        type="application/pdf"
        typemustmatch={true}
      />;

Expected behavior:

No problem.

Actual behavior:

TS2339: Property 'typemustmatch' does not exist on type 'DetailedHTMLProps<ObjectHTMLAttributes<HTMLObjectElement>, HTMLObjectElement>'.

[Vinnl]

Docs at https://html.spec.whatwg.org/multipage/iframe-embed-object.html#attr-object-typemustmatch

[Vinnl]

And a PR to add it here: microsoft/TypeScript-DOM-lib-generator#342