DOM lib is missing Intersection Observer API on window global

TypeScript Version: 2.3.4

Code

The browser Intersection Observer API defines these on the window:

window.IntersectionObserver
window.IntersectionObserverEntry

Expected behavior: These should be defined in the DOM lib typings.

Actual behavior: They are not defined, so I get type errors.

[Hiswe]

As a temporary fix

export {}
declare global {
  interface Window {
    IntersectionObserver: typeof IntersectionObserver
  }
}

[felipedrumond]

IntersectionObserverEntry lacks isVisible property. Chrome Version 87.0.4280.88

Edit: after a quick test, this isVisible seems to be always false.