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+# Amazon Connect Chat Widget - Full Screen Demo
+
+A demonstration of how to launch the Amazon Connect hosted chat widget in a new browser window with full screen embedded view. This implementation showcases chat widget integration with proper error handling, persistence across tabs, and responsive full-screen layout.
+
+> ⚠️ Important: as of May 2025, the hosted widget doesn't have official support for Hosted Widget embedded mode on desktop browser. Mobile devices do support full screen. This demo uses css overrides to enable full screen for desktop: `#amazon-connect-chat-widget [class*="acFrameContainer-"]`
+
+![New Browser Window Widget Recording](./hosted-widget-new-window-recording.gif)
+
+## Prerequisites
+
+- An Amazon Connect instance
+- Access to create/modify chat widgets in your Amazon Connect instance
+- Basic understanding of HTML/JavaScript
+
+## Setup Instructions
+
+1. **Get Your Amazon Connect Widget Code**
+   - Go to your Amazon Connect instance and create or get your existing chat widget
+   - Follow the [official instructions](https://docs.aws.amazon.com/connect/latest/adminguide/add-chat-to-website.html) to create a widget if needed
+
+2. **Allow-list your Domain**
+  - Go to your Amazon Connect instance and open Communications Widget page
+  - Follow the [official instructions](https://docs.aws.amazon.com/connect/latest/adminguide/add-chat-to-website.html#chat-widget-domains) for adding your domain
+  - For local testing, be sure to add `http://localhost:3000`
+
+3. **Configure the Widget**
+   - Open `index.html`
+   - Locate the commented widget configuration section
+   - Replace the placeholder code with your actual widget snippet:
+
+```diff
+<html>
+  <body>
+  <!-- ... -->
+  </body>
+
+    <script>
+    // ...
+
+-   // YOUR HOSTED WIDGET SNIPPET CODE
++   // Replace with your actual widget configuration
++   (function(w, d, x, id) {
++       s = d.createElement('script');
++       s.src = 'example.com';  // Replace with your actual source URL
++       s.async = 1;
++       s.id = id;
++       d.getElementsByTagName('head')[0].appendChild(s);
++       w[x] = w[x] || function() { (w[x].ac = w[x].ac || []).push(arguments) };
++   })(window, document, 'amazon_connect', '<widgetId>');  // Replace <widgetId>
++
++   amazon_connect('styles', {
++       iconType: 'CHAT',
++       openChat: { color: '#ffffff', backgroundColor: '#123456' },
++       closeChat: { color: '#ffffff', backgroundColor: '#123456' }
++   });
++   amazon_connect('snippetId', '<snippetId>');  // Replace <snippetId>
++   amazon_connect('supportedMessagingContentTypes', [
++       'text/plain',
++       'text/markdown',
++       'application/vnd.amazonaws.connect.message.interactive',
++       'application/vnd.amazonaws.connect.message.interactive.response'
++   ]);
+
++   // Auto-launch configuration
++   // Launch Behavior: https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#load-assets
++   amazon_connect("customLaunchBehavior", {
++     skipIconButtonAndAutoLaunch: true,
++     alwaysHideWidgetButton: true
++   });
+
++   // Reconnect to  the ongoing chat session across browser tabs
++   // Chat Persistence: https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#chat-persistence-across-tabs
++   amazon_connect('registerCallback', {
++     'CONNECTION_ESTABLISHED': (eventName, { chatDetails, data }) => {
++       document.cookie = `activeChat=${sessionStorage.getItem("persistedChatSession")}; SameSite=None; Secure`;
++     },
++     'CHAT_ENDED': () => {
++       document.cookie = "activeChat=; SameSite=None; Secure";
++     }
++   });
++   const cookie = document.cookie.split('; ').find(c => c.startsWith('activeChat='));
++   if (cookie) {
++     const activeChatValue = cookie.split('=')[1];
++     sessionStorage.setItem('persistedChatSession', activeChatValue);
++   }
+    </script>
+<html>
+```
+
+## Running the Demo
+
+### Option 1: Direct Browser Access
+
+Open the file directly in your browser:
+```
+file:///path/to/your/index.html
+```
+
+Note: Some features might be limited when using direct file access due to browser security restrictions. Using a local server (Option 1) is recommended.
+
+### Option 2: Using Node.js
+
+```bash
+# Check Node.js version
+node --version  # Should be v20.x.x or newer
+
+# Start local server
+npx live-server index.html --port=3000
+
+# Access the demo at http://localhost:3000
+```
+
+## Features
+
+- Full screen embedded chat widget
+- Responsive layout
+- Chat session persistence across tabs
+
+## Documentation References
+
+- [Adding Chat to Your Website](https://docs.aws.amazon.com/connect/latest/adminguide/add-chat-to-website.html)
+- [Chat Widget Launch Behavior](https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#load-assets)
+- [Custom Styles](https://docs.aws.amazon.com/connect/latest/adminguide/pass-custom-styles.html)
+- [Chat Persistence](https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#chat-persistence-across-tabs)
+
+For best results, ensure your browser allows popups for the demo URL.
diff --git a/hostedWidgetCustomization/newBrowserWindowFullScreen/hosted-widget-new-window-recording.gif b/hostedWidgetCustomization/newBrowserWindowFullScreen/hosted-widget-new-window-recording.gif
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diff --git a/hostedWidgetCustomization/newBrowserWindowFullScreen/index.html b/hostedWidgetCustomization/newBrowserWindowFullScreen/index.html
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+<!doctype html>
+<html>
+
+<head>
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <link rel="stylesheet" type="text/css" href="styles.css" />
+  <script>
+    // Get the current URL parameters
+    const urlParams = new URLSearchParams(window.location.search);
+
+    // Check if "embeddedWidget" is present and set to "true"
+    if (urlParams.get('embeddedWidget') === 'true') {
+      const style = document.createElement('style');
+      style.textContent = `
+      #amazon-connect-chat-widget {
+        position: fixed !important;
+        z-index: 1000 !important;
+        bottom: 0 !important;
+        left: 0 !important;
+        right: 0 !important;
+        width: 100% !important;
+        height: 100vh !important;
+      }
+
+      #amazon-connect-chat-widget [class*="acWidgetContainer-"] {
+        position: absolute !important;
+        bottom: 0 !important;
+        left: 0 !important;
+        right: 0 !important;
+        display: block !important;
+        max-height: 100vh !important;
+        max-width: 100% !important;
+        height: 100vh !important;
+        width: 100% !important;
+        min-width: 100% !important;
+        overflow: hidden !important;
+      }
+
+      #amazon-connect-chat-widget [class*="acFrameContainer-"] {
+        position: absolute !important;
+        bottom: 0 !important;
+        left: 0 !important;
+        right: 0 !important;
+        display: block !important;
+        max-height: 100vh !important;
+        max-width: 100% !important;
+        height: 100vh !important;
+        width: 100% !important;
+        min-width: 100% !important;
+        border: none !important;
+        margin: 0 !important;
+        padding: 0 !important;
+      }
+
+      #amazon-connect-chat-widget-iframe {
+        position: absolute !important;
+        top: 0 !important;
+        left: 0 !important;
+        right: 0 !important;
+        bottom: 0 !important;
+        width: 100% !important;
+        height: 100% !important;
+        border: none !important;
+        margin: 0 !important;
+        padding: 0 !important;
+      }
+    `;
+      document.head.appendChild(style);
+    }
+  </script>
+
+</head>
+
+<body>
+  <header>
+    <h1>Company Website</h1>
+  </header>
+
+  <div class="container">
+    <div class="header">
+      <h1>Contact Us</h1>
+      <p>Have any questions? We'd love to hear from you.</p>
+    </div>
+    <div class="content">
+      <div class="card">
+        <h2>Help & Support</h2>
+        <p>
+          Our support team is spread across the globe to give you answers
+          fast.
+        </p>
+        <button id="launch-widget-btn">Launch a Chat</button>
+        <p>OR</p>
+        <br />
+        <a target="_blank" href="/?embeddedWidget=true">/?embeddedWidget=true</a>
+      </div>
+    </div>
+  </div>
+</body>
+
+<script>
+  // Function to check if URL parameter exists
+  function getUrlParameter(name) {
+    name = name.replace(/[\[]/, '\\[').replace(/[\]]/, '\\]');
+    var regex = new RegExp('[\\?&]' + name + '=([^&#]*)');
+    var results = regex.exec(location.search);
+    return results === null ? '' : decodeURIComponent(results[1].replace(/\+/g, ' '));
+  }
+
+  // Check if we're in embedded widget mode
+  if (getUrlParameter('embeddedWidget') === 'true') {
+    // YOUR HOSTED WIDGET SNIPPET CODE
+    // (function (w, d, x, id) {
+    //   s = d.createElement('script');
+    //   s.src = 'example.com';
+    //   s.async = 1;
+    //   s.id = id;
+    //   d.getElementsByTagName('head')[0].appendChild(s);
+    //   w[x] = w[x] || function () { (w[x].ac = w[x].ac || []).push(arguments) };
+    // })(window, document, 'amazon_connect', '<widgetId>');
+    // amazon_connect('styles', { iconType: 'CHAT', openChat: { color: '#ffffff', backgroundColor: '#123456' }, closeChat: { color: '#ffffff', backgroundColor: '#123456' } });
+    // amazon_connect('snippetId', '<snippetId>');
+    // amazon_connect('supportedMessagingContentTypes', ['text/plain', 'text/markdown', 'application/vnd.amazonaws.connect.message.interactive', 'application/vnd.amazonaws.connect.message.interactive.response']);
+
+    // 1. Auto-launch the window right when it loads
+    // https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#load-assets
+    amazon_connect("customLaunchBehavior", {
+      skipIconButtonAndAutoLaunch: true,
+      alwaysHideWidgetButton: true,
+    });
+
+    // Full screen Embedded
+    // https://docs.aws.amazon.com/connect/latest/adminguide/pass-custom-styles.html
+    amazon_connect('customStyles', {
+      global: {
+        // frameWidth: '0',
+        // frameHeight: '0',
+        //  headerHeight: '120px'
+      },
+    });
+
+    // 2. ADDITIONAL CODE
+    // Reconnect to an ongoing chat
+    // Note, must be 'persistedChatSession' to work
+    // https://docs.aws.amazon.com/connect/latest/adminguide/customize-widget-launch.html#chat-persistence-across-tabs
+    amazon_connect('registerCallback', {
+      'CONNECTION_ESTABLISHED': (eventName, { chatDetails, data }) => {
+        document.cookie = `activeChat=${sessionStorage.getItem("persistedChatSession")}; SameSite=None; Secure`;
+      },
+      'CHAT_ENDED': () => {
+        document.cookie = "activeChat=; SameSite=None; Secure";
+      }
+    });
+    const cookie = document.cookie.split('; ').find(c => c.startsWith('activeChat='));
+    if (cookie) {
+      const activeChatValue = cookie.split('=')[1];
+      sessionStorage.setItem('persistedChatSession', activeChatValue);
+    }
+
+  }
+
+  // Function to open a new browser window with specified URL and dimensions
+  function openNewWindow() {
+    var url = `${window.location.href}?embeddedWidget=true`;
+
+    // Define the width and height
+    var width = 300;
+    var height = 540;
+
+    // Calculate the left and top position to center the window
+    var left = (window.innerWidth - width) / 2;
+    var top = (window.innerHeight - height) / 2;
+
+    // Open the new window with the specified URL, dimensions, and position
+    var newWindow = window.open(
+      url,
+      "",
+      `width=${width}, height=${height}, left=${left}, top=${top}`,
+    );
+  }
+
+  // Attach a click event listener to the button
+  document
+    .getElementById("launch-widget-btn")
+    .addEventListener("click", openNewWindow);
+</script>
+
+</html>
