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Listen to history changes only when possible

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This commit is contained in:
Kimmo Puputti 2017-02-14 14:19:14 +02:00
parent 3f4bc073d4
commit 763db75553
1 changed files with 6 additions and 2 deletions
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8
src/components/PageLayout/PageLayout.js
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@ -10,11 +10,15 @@ const scrollToTop = () => {
class PageLayout extends Component {
componentDidMount() {
this.historyUnlisten = this.context.history.listen(() => scrollToTop());
if (this.context && this.context.history && this.context.history.listen) {
this.historyUnlisten = this.context.history.listen(() => scrollToTop());
}
}
componentWillUnmount() {
this.historyUnlisten();
if (this.historyUnlisten) {
this.historyUnlisten();
}
}
render() {