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Add null-guard to support browsers that don't support performance

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Like Tor.

Fixes https://github.com/vector-im/riot-web/issues/6781
This commit is contained in:
Luke Barnard 2018-06-04 09:38:21 +01:00
parent f55409fd39
commit 6a317569d7
1 changed files with 6 additions and 0 deletions
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6
src/components/structures/MatrixChat.js
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@ -398,6 +398,9 @@ export default React.createClass({
},
startPageChangeTimer() {
// Tor doesn't support performance
if (!performance || !performance.mark) return null;
// This shouldn't happen because componentWillUpdate and componentDidUpdate
// are used.
if (this._pageChanging) {
@ -409,6 +412,9 @@ export default React.createClass({
},
stopPageChangeTimer() {
// Tor doesn't support performance
if (!performance || !performance.mark) return null;
if (!this._pageChanging) {
console.warn('MatrixChat.stopPageChangeTimer: timer not started');
return;