diff --git a/e2e/ambassador/src/background/index.js b/e2e/ambassador/src/background/index.js
index e69de29..027c953 100644
--- a/e2e/ambassador/src/background/index.js
+++ b/e2e/ambassador/src/background/index.js
@@ -0,0 +1,12 @@
+import { WINDOWS_CREATE, WINDOWS_REMOVE } from '../shared/messages';
+import { receiveContentMessage } from './ipc';
+
+receiveContentMessage((message) => {
+  switch (message.type) {
+  case WINDOWS_CREATE:
+    return browser.windows.create();
+  case WINDOWS_REMOVE:
+    return browser.windows.remove(message.windowId);
+  }
+});
+
diff --git a/e2e/ambassador/src/background/ipc.js b/e2e/ambassador/src/background/ipc.js
new file mode 100644
index 0000000..95d2164
--- /dev/null
+++ b/e2e/ambassador/src/background/ipc.js
@@ -0,0 +1,7 @@
+const receiveContentMessage = (func) => {
+  browser.runtime.onMessage.addListener((message) => {
+    return func(message);
+  });
+};
+
+export { receiveContentMessage };
diff --git a/e2e/ambassador/src/client/ipc.js b/e2e/ambassador/src/client/ipc.js
new file mode 100644
index 0000000..9f232ea
--- /dev/null
+++ b/e2e/ambassador/src/client/ipc.js
@@ -0,0 +1,29 @@
+import { METHOD_REQUEST, METHOD_RESPONSE } from '../shared/messages';
+
+const generateId = () => {
+  return Math.random().toString();
+};
+
+const send = (message) => {
+  return new Promise((resolve) => {
+    let id = generateId();
+    let callback = (e) => {
+      let packet = e.data;
+      if (e.source !== window || packet.method !== METHOD_RESPONSE ||
+        packet.id !== id) {
+        return;
+      }
+      window.removeEventListener('message', callback);
+      resolve(packet.message);
+    };
+    window.addEventListener('message', callback);
+
+    window.postMessage({
+      id,
+      method: METHOD_REQUEST,
+      message
+    }, window.origin);
+  });
+};
+
+export { send };
diff --git a/e2e/ambassador/src/client/windows.js b/e2e/ambassador/src/client/windows.js
new file mode 100644
index 0000000..69b8905
--- /dev/null
+++ b/e2e/ambassador/src/client/windows.js
@@ -0,0 +1,17 @@
+import { WINDOWS_CREATE, WINDOWS_REMOVE } from '../shared/messages';
+import * as ipc from './ipc';
+
+const create = () => {
+  return ipc.send({
+    type: WINDOWS_CREATE
+  });
+};
+
+const remove = (windowId) => {
+  return ipc.send({
+    type: WINDOWS_REMOVE,
+    windowId,
+  });
+};
+
+export { create, remove };
diff --git a/e2e/ambassador/src/content/index.js b/e2e/ambassador/src/content/index.js
index e69de29..dd46688 100644
--- a/e2e/ambassador/src/content/index.js
+++ b/e2e/ambassador/src/content/index.js
@@ -0,0 +1,11 @@
+import { WINDOWS_CREATE, WINDOWS_REMOVE } from '../shared/messages';
+import * as ipc from './ipc';
+
+ipc.receivePageMessage((message) => {
+  switch (message.type) {
+  case WINDOWS_CREATE:
+    return ipc.send(message);
+  case WINDOWS_REMOVE:
+    return ipc.send(message);
+  }
+});
diff --git a/e2e/ambassador/src/content/ipc.js b/e2e/ambassador/src/content/ipc.js
new file mode 100644
index 0000000..62fcac1
--- /dev/null
+++ b/e2e/ambassador/src/content/ipc.js
@@ -0,0 +1,31 @@
+import { METHOD_REQUEST, METHOD_RESPONSE } from '../shared/messages';
+
+const send = (message) => {
+  return browser.runtime.sendMessage(message);
+};
+
+const receivePageMessage = (func) => {
+  window.addEventListener('message', (e) => {
+    let packet = e.data;
+    if (e.origin !== window.origin || packet.method !== METHOD_REQUEST) {
+      return;
+    }
+
+    let resp = {
+      id: packet.id,
+      method: METHOD_RESPONSE,
+    };
+    let respMessage = func(packet.message);
+    if (respMessage instanceof Promise) {
+      return respMessage.then((data) => {
+        resp.message = data;
+        e.source.postMessage(resp, e.origin);
+      });
+    } else if (respMessage) {
+      resp.message = respMessage;
+    }
+    e.source.postMessage(resp, e.origin);
+  });
+};
+
+export { send, receivePageMessage };
diff --git a/e2e/ambassador/src/shared/messages.js b/e2e/ambassador/src/shared/messages.js
new file mode 100644
index 0000000..e8a0438
--- /dev/null
+++ b/e2e/ambassador/src/shared/messages.js
@@ -0,0 +1,12 @@
+const METHOD_REQUEST = 'request';
+const METHOD_RESPONSE = 'response';
+const WINDOWS_CREATE = 'windows.create';
+const WINDOWS_REMOVE = 'windows.remove';
+
+export {
+  METHOD_REQUEST,
+  METHOD_RESPONSE,
+
+  WINDOWS_CREATE,
+  WINDOWS_REMOVE,
+};
diff --git a/e2e/contents/scroll.test.js b/e2e/contents/scroll.test.js
new file mode 100644
index 0000000..6cf0042
--- /dev/null
+++ b/e2e/contents/scroll.test.js
@@ -0,0 +1,19 @@
+import { expect } from "chai";
+import * as windows from "../ambassador/src/client/windows";
+
+describe("scroll test", () => {
+  let targetWindow;
+  before(() => {
+    return windows.create().then((win) => {
+      targetWindow = win;
+    });
+  });
+
+  after(() => {
+    return windows.remove(targetWindow.id);
+  });
+
+  it('runs test', () => {
+    expect(targetWindow.id).be.a('number');
+  });
+});
diff --git a/e2e/karma-delay.js b/e2e/karma-delay.js
new file mode 100644
index 0000000..be7b448
--- /dev/null
+++ b/e2e/karma-delay.js
@@ -0,0 +1,10 @@
+'use strict';
+
+window.__karma__.start = (function(start){
+return function(){
+  var args = arguments
+  setTimeout(() => {
+    start(args)
+  }, 1000);
+};
+}(window.__karma__.start));
diff --git a/e2e/karma.conf.js b/e2e/karma.conf.js
index 259eb17..a6c115e 100644
--- a/e2e/karma.conf.js
+++ b/e2e/karma.conf.js
@@ -4,6 +4,7 @@ module.exports = function (config) {
     basePath: '',
     frameworks: ['mocha'],
     files: [
+      'karma-delay.js',
       '**/*.test.js'
     ],