Fix suppressHydrationWarning not working in production #24271
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gaearon
commented
Apr 4, 2022
| @@ -875,7 +874,6 @@ export function diffHydratedProperties( | |||
| let extraAttributeNames: Set<string>; | |||
|
|
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| if (__DEV__) { | |||
| suppressHydrationWarning = rawProps[SUPPRESS_HYDRATION_WARNING] === true; | |||
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Moved inline since we don't want to hit the property checks for every props object.
gaearon
commented
Apr 4, 2022
| @@ -1028,7 +1026,7 @@ export function diffHydratedProperties( | |||
| isCustomComponentTag && enableCustomElementPropertySupport | |||
| ? null | |||
| : getPropertyInfo(propKey); | |||
| if (suppressHydrationWarning) { | |||
| if (rawProps[SUPPRESS_HYDRATION_WARNING] === true) { | |||
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This runs repeatedly but this part is DEV-only.
gaearon
commented
Apr 4, 2022
| @@ -132,10 +132,7 @@ type SelectionInformation = {| | |||
| selectionRange: mixed, | |||
| |}; | |||
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| let SUPPRESS_HYDRATION_WARNING; | |||
| if (__DEV__) { | |||
| SUPPRESS_HYDRATION_WARNING = 'suppressHydrationWarning'; | |||
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I've added a regression test for this one as well.
|
Comparing: c89a15c...98de7f6 Critical size changesIncludes critical production bundles, as well as any change greater than 2%:
Significant size changesIncludes any change greater than 0.2%: (No significant changes) |
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Fixes #24270.
We intended
suppressHydrationWarningto be checked in production as an escape hatch in 18 and prevent mismatch errors. However, the logic mistakingly only read it in development mode. I've added regression tests for the lines I've changed.I've noticed we don't patch up
dangerouslySetInnerHTMLlike we do text content. (Although we do ignore its mismatch in production.) I left that as is, but added a test verifying the current behavior.