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-rw-r--r--dom/performance/PerformanceObserver.cpp14
1 files changed, 13 insertions, 1 deletions
diff --git a/dom/performance/PerformanceObserver.cpp b/dom/performance/PerformanceObserver.cpp
index 11dd30ac2..d02acfb09 100644
--- a/dom/performance/PerformanceObserver.cpp
+++ b/dom/performance/PerformanceObserver.cpp
@@ -114,12 +114,13 @@ PerformanceObserver::Notify()
RefPtr<PerformanceObserverEntryList> list =
new PerformanceObserverEntryList(this, mQueuedEntries);
+ mQueuedEntries.Clear();
+
ErrorResult rv;
mCallback->Call(this, *list, *this, rv);
if (NS_WARN_IF(rv.Failed())) {
rv.SuppressException();
}
- mQueuedEntries.Clear();
}
void
@@ -170,6 +171,17 @@ PerformanceObserver::Observe(const PerformanceObserverInit& aOptions,
mEntryTypes.SwapElements(validEntryTypes);
mPerformance->AddObserver(this);
+
+ if (aOptions.mBuffered) {
+ for (auto entryType : mEntryTypes) {
+ nsTArray<RefPtr<PerformanceEntry>> existingEntries;
+ mPerformance->GetEntriesByType(entryType, existingEntries);
+ if (!existingEntries.IsEmpty()) {
+ mQueuedEntries.AppendElements(existingEntries);
+ }
+ }
+ }
+
mConnected = true;
}