• Fix useDynamicRowHeight not measuring rows that set an aria-hidden attribute. - #917
• Support rendering into a different window (e.g. an iframe or a pop-up window opened with a portal). List, Grid, and useDynamicRowHeight now use the ResizeObserver, requestAnimationFrame, and document that belong to the window containing the list, rather than the globals of the window that loaded the library. - #918
  • getScrollbarSize accepts an optional ownerDocument parameter and caches the measured size separately for each document.