Event API: isTargetWithinEventResponderScope on unmounted event components (#15672)

trueadm · web-flow · commit 95e06ac3d091 · 2019-05-16T18:59:59.000+01:00
diff --git a/packages/react-dom/src/events/DOMEventResponderSystem.js b/packages/react-dom/src/events/DOMEventResponderSystem.js
@@ -197,7 +197,7 @@ const eventResponderContext: ReactResponderContext = {
         }
         if (
           fiber.tag === EventComponent &&
-          fiber.stateNode.responder === responder
+          (fiber.stateNode === null || fiber.stateNode.responder === responder)
         ) {
           return false;
         }

Original file line number	Diff line number	Diff line change
`@@ -197,7 +197,7 @@ const eventResponderContext: ReactResponderContext = {`
`197`	`197`	`}`
`198`	`198`	`if (`
`199`	`199`	`fiber.tag === EventComponent &&`
`200`		`- fiber.stateNode.responder === responder`
	`200`	`+ (fiber.stateNode === null \|\| fiber.stateNode.responder === responder)`
`201`	`201`	`) {`
`202`	`202`	`return false;`
`203`	`203`	`}`