Fix race condition when unmounting

giuseppeg · web-flow · commit b7473525da3d · 2018-11-26T17:56:38.000+01:00
On `componentWillUnmount` if `container` is already deleted `removeChild` fails
diff --git a/src/Layer.js b/src/Layer.js
@@ -28,7 +28,7 @@ class LayerImpl extends React.Component {
     const { container } = this.state
     const { root, host, onUnmount } = this.props
     root && onUnmount && onUnmount(root)
-    host && host.removeChild(container)
+    host && container && host.removeChild(container)
   }
   render() {
     const { container } = this.state

Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,7 @@ class LayerImpl extends React.Component {`
`28`	`28`	`const { container } = this.state`
`29`	`29`	`const { root, host, onUnmount } = this.props`
`30`	`30`	`root && onUnmount && onUnmount(root)`
`31`		`- host && host.removeChild(container)`
	`31`	`+ host && container && host.removeChild(container)`
`32`	`32`	`}`
`33`	`33`	`render() {`
`34`	`34`	`const { container } = this.state`