diff --git a/dom/events/test/pointerevents/pointerevent_element_haspointercapture-manual.html b/dom/events/test/pointerevents/pointerevent_element_haspointercapture-manual.html
index 1e0edfe5b262..1826467fed45 100644
--- a/dom/events/test/pointerevents/pointerevent_element_haspointercapture-manual.html
+++ b/dom/events/test/pointerevents/pointerevent_element_haspointercapture-manual.html
@@ -35,7 +35,9 @@
                     target1.setPointerCapture(e.pointerId);
                     test_pointerEvent.step(function () {
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
-                                      "target1.setPointerCapture, target0.hasPointerCapture should be false");
+                                      "after target1.setPointerCapture, target0.hasPointerCapture should be false");
+                        assert_equals(target1.hasPointerCapture(e.pointerId), true,
+                                      "after target1.setPointerCapture, target1.hasPointerCapture should be true");
                     });
                     target0.setPointerCapture(e.pointerId);
                     set_capture_to_target0 = true;
@@ -50,6 +52,8 @@
                     test_pointerEvent.step(function () {
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
                                       "after target0.releasePointerCapture, target0.hasPointerCapture should be false");
+                        assert_equals(target1.hasPointerCapture(e.pointerId), false,
+                                      "after target0.releasePointerCapture, target1.hasPointerCapture should be false");
                     });
                     target0.setPointerCapture(e.pointerId);
                     set_capture_to_target0 = true;
@@ -83,6 +87,13 @@
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
                                       "pointerup target0.hasPointerCapture should be false");
                     });
+                });
+
+                on_event(target1, "pointerup", function (e) {
+                    test_pointerEvent.step(function () {
+                        assert_equals(target1.hasPointerCapture(e.pointerId), false,
+                                      "pointerup target1.hasPointerCapture should be false");
+                    });
                     test_pointerEvent.done();
                 });
             }
@@ -95,14 +106,15 @@
             Test Description: This test checks if Element.hasPointerCapture returns value correctly
             <ol>
                 <li> Press black rectangle and do not release
-                <li> Move your pointer to yellow rectangle
+                <li> Move your pointer to purple rectangle
                 <li> Release the pointer
+                <li> Click purple rectangle
             </ol>
         </h4>
         <p>
         -->
-        <div id="target0" style="background:black"></div>
-        <div id="target1" style="background:yellow"></div>
+        <div id="target0" touch-action:none></div>
+        <div id="target1" touch-action:none></div>
         <div id="complete-notice">
             <p>The following pointer types were detected: <span id="pointertype-log"></span>.</p>
         </div>
diff --git a/dom/events/test/pointerevents/test_pointerevent_element_haspointercapture-manual.html b/dom/events/test/pointerevents/test_pointerevent_element_haspointercapture-manual.html
index b0fe90646162..ead423ab28c1 100644
--- a/dom/events/test/pointerevents/test_pointerevent_element_haspointercapture-manual.html
+++ b/dom/events/test/pointerevents/test_pointerevent_element_haspointercapture-manual.html
@@ -23,6 +23,8 @@ https://bugzilla.mozilla.org/show_bug.cgi?id=1000870
         sendMouseEvent(int_win, "target0", "mousemove", {button:0});
         sendMouseEvent(int_win, "target1", "mousemove", {button:0});
         sendMouseEvent(int_win, "target1", "mouseup", {button:0});
+        sendMouseEvent(int_win, "target1", "mousedown", {button:0});
+        sendMouseEvent(int_win, "target1", "mouseup", {button:0});
       }
     </script>
   </head>
diff --git a/testing/web-platform/tests/pointerevents/pointerevent_element_haspointercapture-manual.html b/testing/web-platform/tests/pointerevents/pointerevent_element_haspointercapture-manual.html
index b0263b9b6c7f..d447e4e2ac82 100644
--- a/testing/web-platform/tests/pointerevents/pointerevent_element_haspointercapture-manual.html
+++ b/testing/web-platform/tests/pointerevents/pointerevent_element_haspointercapture-manual.html
@@ -34,7 +34,9 @@
                     target1.setPointerCapture(e.pointerId);
                     test_pointerEvent.step(function () {
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
-                                      "target1.setPointerCapture, target0.hasPointerCapture should be false");
+                                      "after target1.setPointerCapture, target0.hasPointerCapture should be false");
+                        assert_equals(target1.hasPointerCapture(e.pointerId), true,
+                                      "after target1.setPointerCapture, target1.hasPointerCapture should be true");
                     });
                     target0.setPointerCapture(e.pointerId);
                     set_capture_to_target0 = true;
@@ -49,6 +51,8 @@
                     test_pointerEvent.step(function () {
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
                                       "after target0.releasePointerCapture, target0.hasPointerCapture should be false");
+                        assert_equals(target1.hasPointerCapture(e.pointerId), false,
+                                      "after target0.releasePointerCapture, target1.hasPointerCapture should be false");
                     });
                     target0.setPointerCapture(e.pointerId);
                     set_capture_to_target0 = true;
@@ -82,6 +86,13 @@
                         assert_equals(target0.hasPointerCapture(e.pointerId), false,
                                       "pointerup target0.hasPointerCapture should be false");
                     });
+                });
+
+                on_event(target1, "pointerup", function (e) {
+                    test_pointerEvent.step(function () {
+                        assert_equals(target1.hasPointerCapture(e.pointerId), false,
+                                      "pointerup target1.hasPointerCapture should be false");
+                    });
                     test_pointerEvent.done();
                 });
             }
@@ -93,13 +104,14 @@
             Test Description: This test checks if Element.hasPointerCapture returns value correctly
             <ol>
                 <li> Press black rectangle and do not release
-                <li> Move your pointer to yellow rectangle
+                <li> Move your pointer to purple rectangle
                 <li> Release the pointer
+                <li> Click purple rectangle
             </ol>
         </h4>
         <p>
-        <div id="target0" style="background:black"></div>
-        <div id="target1" style="background:yellow"></div>
+        <div id="target0" touch-action:none></div>
+        <div id="target1" touch-action:none></div>
         <div id="complete-notice">
             <p>The following pointer types were detected: <span id="pointertype-log"></span>.</p>
         </div>