deleted file mode 100644
--- a/testing/web-platform/meta/web-animations/interfaces/KeyframeEffect/constructor.html.ini
+++ /dev/null
@@ -1,6 +0,0 @@
-[constructor.html]
-  type: testharness
-  [composite values are parsed correctly when passed to the KeyframeEffectReadOnly constructor in KeyframeTimingOptions]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1311620
-

--- a/testing/web-platform/tests/web-animations/interfaces/KeyframeEffect/constructor.html
+++ b/testing/web-platform/tests/web-animations/interfaces/KeyframeEffect/constructor.html
@@ -105,28 +105,28 @@ test(function(t) {
 }, "composite values are parsed correctly when passed to the " +
    "KeyframeEffectReadOnly constructor in regular keyframes");
 
 test(function(t) {
   gGoodOptionsCompositeValueTests.forEach(function(composite) {
     var effect = new KeyframeEffectReadOnly(target, {
       left: ["10px", "20px"]
     }, { composite: composite });
-    assert_equals(effect.getKeyframes()[0].composite, composite,
+    assert_equals(effect.getKeyframes()[0].composite, undefined,
                   "resulting composite for '" + composite + "'");
   });
   gBadCompositeValueTests.forEach(function(composite) {
     assert_throws(new TypeError, function() {
       new KeyframeEffectReadOnly(target, {
         left: ["10px", "20px"]
       }, { composite: composite });
     });
   });
-}, "composite values are parsed correctly when passed to the " +
-   "KeyframeEffectReadOnly constructor in KeyframeTimingOptions");
+}, "composite value is absent if the composite operation specified on the " +
+   "keyframe effect is being used");
 
 gPropertyIndexedKeyframesTests.forEach(function(subtest) {
   test(function(t) {
     var effect = new KeyframeEffectReadOnly(target, subtest.input);
     assert_frame_lists_equal(effect.getKeyframes(), subtest.output);
   }, "a KeyframeEffectReadOnly can be constructed with " + subtest.desc);
 
   test(function(t) {