React error boundaries are a useful feature that allows you to catch and handle errors that occur during rendering, rather than letting them crash your entire application. However, there are some scenarios in which error boundaries may not be able to catch errors. Here are some examples:
- Errors that occur outside of the component hierarchy: React error boundaries can only catch errors that occur within their component tree. If an error occurs outside of the boundary's tree, it will not be caught. For example:
function App() {
return (
<ErrorBoundary>
<MyComponent />