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Brian Vaughn
bcca5a6ca7
The behavior of error boundaries for passive effects that throw during cleanup was recently changed so that React ignores boundaries which are also unmounting in favor of still-mounted boundaries. This commit implements that same behavior for layout effects (useLayoutEffect, componentWillUnmount, and ref-detachment). The new, skip-unmounting-boundaries behavior is behind a feature flag (`skipUnmountedBoundaries`).