diff --git a/tests/content/test_interfaces.html b/tests/content/test_interfaces.html
index 09bcda3ff20..1e56c7fe262 100644
--- a/tests/content/test_interfaces.html
+++ b/tests/content/test_interfaces.html
@@ -163,6 +163,7 @@ var interfaceNamesInGlobalScope = [
   "Range",
   "Screen",
   "Storage",
+  "StorageEvent",
   "TestBinding", // XXX
   "Text",
   "TreeWalker",
diff --git a/tests/wpt/metadata/html/dom/interfaces.html.ini b/tests/wpt/metadata/html/dom/interfaces.html.ini
index a269b210e2f..cc4b443a5ae 100644
--- a/tests/wpt/metadata/html/dom/interfaces.html.ini
+++ b/tests/wpt/metadata/html/dom/interfaces.html.ini
@@ -9285,27 +9285,6 @@
   [StorageEvent interface object length]
     expected: FAIL
 
-  [StorageEvent interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [StorageEvent interface: existence and properties of interface prototype object\'s "constructor" property]
-    expected: FAIL
-
-  [StorageEvent interface: attribute key]
-    expected: FAIL
-
-  [StorageEvent interface: attribute oldValue]
-    expected: FAIL
-
-  [StorageEvent interface: attribute newValue]
-    expected: FAIL
-
-  [StorageEvent interface: attribute url]
-    expected: FAIL
-
-  [StorageEvent interface: attribute storageArea]
-    expected: FAIL
-
   [HTMLAppletElement interface: existence and properties of interface object]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webstorage/event_constructor.html.ini b/tests/wpt/metadata/webstorage/event_constructor.html.ini
deleted file mode 100644
index 3ce5130acf1..00000000000
--- a/tests/wpt/metadata/webstorage/event_constructor.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[event_constructor.html]
-  type: testharness
-  expected: TIMEOUT
-  [Web Storage]
-    expected: FAIL
-
-  [storageeventinit test]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/webstorage/event_constructor_js.html.ini b/tests/wpt/metadata/webstorage/event_constructor_js.html.ini
deleted file mode 100644
index 447e6c26fb6..00000000000
--- a/tests/wpt/metadata/webstorage/event_constructor_js.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[event_constructor_js.html]
-  type: testharness
-  expected: TIMEOUT
-  [Web Storage]
-    expected: FAIL
-
-  [StorageEvent constructor and nulls]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/webstorage/event_local_storageeventinit.html.ini b/tests/wpt/metadata/webstorage/event_local_storageeventinit.html.ini
deleted file mode 100644
index 0658b8df06c..00000000000
--- a/tests/wpt/metadata/webstorage/event_local_storageeventinit.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[event_local_storageeventinit.html]
-  type: testharness
-  expected: TIMEOUT
-  [Web Storage]
-    expected: FAIL
-
-  [storageeventinit test]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/webstorage/event_session_storageeventinit.html.ini b/tests/wpt/metadata/webstorage/event_session_storageeventinit.html.ini
deleted file mode 100644
index e4584f0cc12..00000000000
--- a/tests/wpt/metadata/webstorage/event_session_storageeventinit.html.ini
+++ /dev/null
@@ -1,9 +0,0 @@
-[event_session_storageeventinit.html]
-  type: testharness
-  expected: TIMEOUT
-  [Web Storage]
-    expected: FAIL
-
-  [storageeventinit test]
-    expected: NOTRUN
-
diff --git a/tests/wpt/metadata/webstorage/idlharness.html.ini b/tests/wpt/metadata/webstorage/idlharness.html.ini
index f592faf9b40..f8e2048bd32 100644
--- a/tests/wpt/metadata/webstorage/idlharness.html.ini
+++ b/tests/wpt/metadata/webstorage/idlharness.html.ini
@@ -12,27 +12,6 @@
   [StorageEvent interface object length]
     expected: FAIL
 
-  [StorageEvent interface: existence and properties of interface prototype object]
-    expected: FAIL
-
-  [StorageEvent interface: existence and properties of interface prototype object\'s "constructor" property]
-    expected: FAIL
-
-  [StorageEvent interface: attribute key]
-    expected: FAIL
-
-  [StorageEvent interface: attribute oldValue]
-    expected: FAIL
-
-  [StorageEvent interface: attribute newValue]
-    expected: FAIL
-
-  [StorageEvent interface: attribute url]
-    expected: FAIL
-
-  [StorageEvent interface: attribute storageArea]
-    expected: FAIL
-
   [Window interface: attribute sessionStorage]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/webstorage/missing_arguments.html.ini b/tests/wpt/metadata/webstorage/missing_arguments.html.ini
deleted file mode 100644
index 8cf2b387477..00000000000
--- a/tests/wpt/metadata/webstorage/missing_arguments.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[missing_arguments.html]
-  type: testharness
-  [Should throw TypeError for function "function () { new StorageEvent(); }".]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/webstorage/storage_local_key.html.ini b/tests/wpt/metadata/webstorage/storage_local_key.html.ini
deleted file mode 100644
index 6c1b6d8aac8..00000000000
--- a/tests/wpt/metadata/webstorage/storage_local_key.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[storage_local_key.html]
-  type: testharness
-  [Web Storage 3]
-    expected: FAIL
-