Given
```js
function ThrowInEffect() {
  React.useEffect(() => {
    throw new Error('passive effect')
  }, [])
  return null;
}
```

In React 17 this error got logged to the console (and triggered the error overlay in create-react-app) regardless of whether `ThrowInEffect` was a child of an Error Boundary or not.

In React 18 (`createRoot` and legacy root API) an Error Boundary will prevent logging that error to the console (and not trigger the error overlay in create-react-app).

Errors during render work like they did in React 17.

Behavior in React 17: https://codesandbox.io/s/react-17-error-boundaries-vp21e?file=/src/index.js
Behavior in React 18: https://codesandbox.io/s/react-18-error-boundaries-psd56?file=/src/index.js


Recording of effect errors in React 17 and 18 and with and without Error Boundaries_

https://user-images.githubusercontent.com/12292047/122749780-053ced00-d28e-11eb-98ce-075dcdc53ee2.mp4


break;
      }
      case HostComponent: {
        const instance: Instance = finishedWork.stateNode;
        
        
        
        
        if (current === null && finishedWork.flags & ) {
          const type = finishedWork.type;
          const props = finishedWork.memoizedProps;
          commitMount(instance, type, props, finishedWork);
        }
        break;
      }
      case HostText: {
        
        break;
      }
      case HostPortal: {
        
        break;
      }
      case Profiler: {
        if (enableProfilerTimer) {
          const {onCommit, onRender} = finishedWork.memoizedProps;
          const {effectDuration} = finishedWork.stateNode;
          const commitTime = getCommitTime();
          let phase = current === null ? 'mount' : 'update';
          if (enableProfilerNestedPhase) {