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Fix crash when browser doesn't report page change measurement

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This commit is contained in:
Luke Barnard 2018-05-03 14:08:10 +01:00
parent 6bf1eb105a
commit 22f2d6f292
2 changed files with 10 additions and 3 deletions
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4
src/components/structures/MatrixChat.js
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@ -413,6 +413,10 @@ export default React.createClass({
performance.clearMarks('riot_MatrixChat_page_change_start');
performance.clearMarks('riot_MatrixChat_page_change_stop');
const measurement = performance.getEntriesByName('riot_MatrixChat_page_change_delta').pop();
// In practice, sometimes the entries list is empty, so we get no measurement
if (!measurement) return null;
return measurement.duration;
},