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diff --git a/testing/web-platform/tests/presentation-api/receiving-ua/PresentationConnection_send-manual.https.html b/testing/web-platform/tests/presentation-api/receiving-ua/PresentationConnection_send-manual.https.html
new file mode 100644
index 0000000000..188f7e3fc1
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+++ b/testing/web-platform/tests/presentation-api/receiving-ua/PresentationConnection_send-manual.https.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Sending a message through PresentationConnection</title>
+<link rel="author" title="Tomoyuki Shimizu" href="https://github.com/tomoyukilabs/">
+<link rel="help" href="http://w3c.github.io/presentation-api/#sending-a-message-through-presentationconnection">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="common.js"></script>
+<script src="support/stash.js"></script>
+
+<p>Click the button below and select the available presentation display, to start the manual test.</p>
+<button id="presentBtn">Start Presentation Test</button>
+
+<script>
+  setup({explicit_timeout: true});
+
+  const message1 = '1st';
+  const message2 = '2nd';
+  const message3 = new Uint8Array([51, 114, 100]);      // "3rd"
+  const message4 = new Uint8Array([52, 116, 104]);      // "4th"
+  const message5 = new Uint8Array([108, 97, 115, 116]); // "last"
+
+  const toUint8Array = buf => {
+    return buf instanceof ArrayBuffer ? new Uint8Array(buf) : buf;
+  }
+
+  // compare two ArrayBuffer or Uint8Array
+  const compare = (a, b) => {
+    const p = toUint8Array(a);
+    const q = toUint8Array(b);
+    return !!p && !!q && p.every((item, index) => { return item === q[index]; });
+  };
+
+  let connection;
+
+  const presentBtn = document.getElementById('presentBtn');
+  presentBtn.onclick = () => {
+    presentBtn.disabled = true;
+    const stash = new Stash(stashIds.toController, stashIds.toReceiver);
+    const request = new PresentationRequest('support/PresentationConnection_send_receiving-ua.html');
+
+    let eventWatcher;
+
+    promise_test(t => {
+      t.add_cleanup(() => {
+        connection.onconnect = () => { connection.terminate(); };
+        if (connection.state === 'closed')
+          request.reconnect(connection.id);
+        else
+          connection.terminate();
+      });
+
+      return request.start().then(c => {
+        // enable timeout again, cause no user action is needed from here.
+        t.step_timeout(() => {
+          t.force_timeout();
+          t.done();
+        }, 3000);
+
+        connection = c;
+        eventWatcher = new EventWatcher(t, connection, 'connect');
+        return eventWatcher.wait_for('connect');
+      }).then(() => {
+        return stash.init();
+      }).then(() => {
+        stash.send({ type: 'ok' });
+        eventWatcher = new EventWatcher(t, connection, 'message');
+        return eventWatcher.wait_for('message');
+      }).then(evt => {
+        assert_true(typeof evt.data === 'string' && evt.data === message1, 'send a string correctly');
+        return eventWatcher.wait_for('message');
+      }).then(evt => {
+        assert_true(typeof evt.data === 'string' && evt.data === message2, 'send a string correctly');
+        return eventWatcher.wait_for('message');
+      }).then(evt => {
+        assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message3), 'send a Blob correctly');
+        return eventWatcher.wait_for('message');
+      }).then(evt => {
+        assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message4), 'send an ArrayBuffer correctly');
+        return eventWatcher.wait_for('message');
+      }).then(evt => {
+        assert_true(evt.data instanceof ArrayBuffer && compare(evt.data, message5), 'send an ArrayBufferView correctly');
+        return stash.send({ type: 'ok' });
+      }).then(() => {
+        return stash.receive();
+      }).then(data => {
+        const result = JSON.parse(data);
+        if (!result.type || result.type !== 'error')
+          assert_unreached('an InvalidStateError is thrown if the state is "closed"');
+        else
+          assert_throws_dom('InvalidStateError', () => {
+            throw new DOMException(result.message, result.name);
+          }, 'an InvalidStateError is thrown if the state is "closed"');
+      });
+    });
+  };
+</script>