Fix hydration of non-string dangerousSetInnerHTML.__html #13353
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This was referenced Aug 9, 2018
trueadm
reviewed
Aug 9, 2018
| @@ -249,7 +249,7 @@ export function shouldSetTextContent(type: string, props: Props): boolean { | |||
| typeof props.children === 'number' || | |||
| (typeof props.dangerouslySetInnerHTML === 'object' && | |||
| props.dangerouslySetInnerHTML !== null && | |||
| typeof props.dangerouslySetInnerHTML.__html === 'string') | |||
| typeof props.dangerouslySetInnerHTML.__html != null) | |||
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I don't think you intended to keep the typeof here?
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No. Also there are other reasons why this doesn't work. Will look again.
trueadm
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Aug 9, 2018
aweary
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Aug 9, 2018
packages/react-dom/src/__tests__/ReactDOMServerIntegrationReconnecting-test.js
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Fixes #11789.
With this PR, non-string
dangerousInnerHTML.__htmlis now handled during hydration the same way as we handle it during a pure client-only or server-only render. Specifically, we coerce any value__htmlvalue that isn'tnullorundefinedto a string. Previously, hydration behaved inconsistently.These are the same tests run against on master:
You can see that the only ones that were failing are related to hydration. This tells us that the PR doesn't change the behavior for purely client-only or server-only renders, but it fixes the inconsistency when hydrating on top of good markup.