# Add asynchronous error handling and assertions.
# Add asynchronous error handling and assertions.

Also:

1. Return original `window`'s `setTimeout`, `setInterval` and `requestAnimationFrame` on tear down. This fixes b/196814883.
1. Clarify assertion error messages.

RELNOTES: n/a
PiperOrigin-RevId: 394260282
Change-Id: Ib73aabb84841eaac8ba5cd782566b023c7b47c03

google/closure-library,google/closure-library,google/closure-library,google/closure-library,google/closure-library