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docs: document prod vs dev behavior difference in componentDidCatch (#2168)

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Federico Zivolo
2020-11-14 13:26:15 +01:00
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content/docs/reference-react-component.md
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@@ -413,6 +413,12 @@ class ErrorBoundary extends React.Component {
}
```
Production and development builds of React slightly differ in the way `componentDidCatch()` handles errors.
On development, the errors will bubble up to `window`, this means that any `window.onerror` or `window.addEventListener('error', callback)` will intercept the errors that have been caught by `componentDidCatch()`.
On production, instead, the errors will not bubble up, which means any ancestor error handler will only receive errors not explictly caught by `componentDidCatch()`.
> Note
>
> In the event of an error, you can render a fallback UI with `componentDidCatch()` by calling `setState`, but this will be deprecated in a future release.