Use setTimeout to move to the next event to stop Firefox being unhappy.
Use setTimeout to move to the next event to stop Firefox being unhappy.

web-animations/web-animations-js-legacy,beni55/web-animations-js-legacy,web-animations/web-animations-js-legacy,beni55/web-animations-js-legacy,web-animations/web-animations-js-legacy,birtles/web-animations-js,beni55/web-animations-js-legacy,birtles/web-animations-js,beni55/web-animations-js-legacy,birtles/web-animations-js