diff --git a/dom/base/PerformanceObserverEntryList.cpp b/dom/base/PerformanceObserverEntryList.cpp
index 34dee75d2060..442f24b0647d 100644
--- a/dom/base/PerformanceObserverEntryList.cpp
+++ b/dom/base/PerformanceObserverEntryList.cpp
@@ -43,9 +43,12 @@ PerformanceObserverEntryList::GetEntries(
 {
   aRetval.Clear();
   for (const nsRefPtr<PerformanceEntry>& entry : mEntries) {
-    const PerformanceResourceTiming* resourceEntry =
-      entry->ToResourceTiming();
-    if (aFilter.mInitiatorType.WasPassed() && resourceEntry) {
+    if (aFilter.mInitiatorType.WasPassed()) {
+      const PerformanceResourceTiming* resourceEntry =
+        entry->ToResourceTiming();
+      if (!resourceEntry) {
+        continue;
+      }
       nsAutoString initiatorType;
       resourceEntry->GetInitiatorType(initiatorType);
       if (!initiatorType.Equals(aFilter.mInitiatorType.Value())) {
diff --git a/dom/base/test/performance_observer.html b/dom/base/test/performance_observer.html
index b8c715cdac1b..d194c17e42df 100644
--- a/dom/base/test/performance_observer.html
+++ b/dom/base/test/performance_observer.html
@@ -41,9 +41,11 @@ function promiseXHR(aUrl) {
 async_test(t => {
   performance.clearResourceTimings();
 
+  var observedEntryList;
   var observedEntries = [];
   var observer = new PerformanceObserver(list => {
     list.getEntries().forEach(entry => observedEntries.push(entry));
+    observedEntryList = list;
   });
   observer.observe({entryTypes: ['resource']});
 
@@ -54,6 +56,20 @@ async_test(t => {
     assert_array_equals(observedEntries,
                         performance.getEntriesByType("resource"),
                         "Observed 'resource' entries should equal to entries obtained by getEntriesByType.");
+
+    // getEntries filtering tests
+    assert_array_equals(observedEntryList.getEntries({name: "http://mochi.test:8888/tests/dom/base/test/test-data.json"}),
+                        performance.getEntriesByName("http://mochi.test:8888/tests/dom/base/test/test-data.json"),
+                        "getEntries with name filter should return correct results.");
+    assert_array_equals(observedEntryList.getEntries({entryType: "resource"}),
+                        performance.getEntriesByType("resource"),
+                        "getEntries with entryType filter should return correct results.");
+    assert_array_equals(observedEntryList.getEntries({initiatorType: "xmlhttprequest"}),
+                        performance.getEntriesByType("resource"),
+                        "getEntries with initiatorType filter should return correct results.");
+    assert_array_equals(observedEntryList.getEntries({initiatorType: "link"}),
+                        [],
+                        "getEntries with non-existent initiatorType filter should return an empty array.");
   }));
 }, "resource-timing test");
 
diff --git a/dom/base/test/test_performance_observer.js b/dom/base/test/test_performance_observer.js
index 8066ced6eb36..5eb43c10ceec 100644
--- a/dom/base/test/test_performance_observer.js
+++ b/dom/base/test/test_performance_observer.js
@@ -135,6 +135,10 @@ test(t => {
                                                     "entryType": "mark"}),
                       [],
                       "getEntries with non-existent name and entryType filter should return an empty array.");
+
+  assert_array_equals(observedEntryList.getEntries({initiatorType: "xmlhttprequest"}),
+                      [],
+                      "getEntries with initiatorType filter should return an empty array.");
 }, "Test for PerformanceObserverEntryList.getEntries");
 
 test(t => {