jmarantz commented on a change in pull request #1802: Prefer Paint Timing API
over chrome.loadTimes()
URL:
https://github.com/apache/incubator-pagespeed-mod/pull/1802#discussion_r225014034
##########
File path: net/instaweb/rewriter/add_instrumentation.js
##########
@@ -71,11 +71,11 @@ pagespeed.AddInstrumentation.prototype.sendBeacon =
function() {
}
url += '&r' + this.event_ + '=';
- if (window['performance']) {
- var timingApi = window['performance']['timing'];
+ if (winPerf = window['performance']) {
+ var timingApi = winPerf['timing'];
Review comment:
if timingApi is null then won't the finding of navigationStart fail below?
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