name: zoom-cobrowse-sdk description: "Reference skill for Zoom Cobrowse SDK. Use after routing to a collaborative-support workflow when implementing browser co-browsing, annotation tools, privacy masking, remote assist, or PIN-based session sharing." user-invocable: false triggers:

• "cobrowse"
• "co-browse"
• "collaborative browsing"
• "agent assist"
• "customer support screen share"
• "zoom cobrowse"

Zoom Cobrowse SDK - Web Development

Background reference for collaborative browsing on the web with Zoom Cobrowse SDK. Use this after the support workflow is clear and you need implementation detail.

Official Documentation: https://developers.zoom.us/docs/cobrowse-sdk/ API Reference: https://marketplacefront.zoom.us/sdk/cobrowse/ Quickstart Repository: https://github.com/zoom/CobrowseSDK-Quickstart Auth Endpoint Sample: https://github.com/zoom/cobrowsesdk-auth-endpoint-sample

Quick Links

New to Cobrowse SDK? Follow this path:

1. [Get Started Guide](get-started.md) - Complete setup from credentials to first session
2. [Session Lifecycle](concepts/session-lifecycle.md) - Understanding customer and agent flows
3. [JWT Authentication](concepts/jwt-authentication.md) - Token generation and security
4. [Customer Integration](examples/customer-integration.md) - Integrate SDK into your website
5. [Agent Integration](examples/agent-integration.md) - Set up agent portal (iframe or npm)

Core Concepts:

• [Two Roles Pattern](concepts/two-roles-pattern.md) - Customer vs Agent architecture
• [Session Lifecycle](concepts/session-lifecycle.md) - PIN generation, connection, reconnection
• [JWT Authentication](concepts/jwt-authentication.md) - SDK Key vs API Key, role_type, claims
• [Distribution Methods](concepts/distribution-methods.md) - CDN vs npm (BYOP)

Features:

• [Annotation Tools](examples/annotations.md) - Drawing, highlighting, pointer tools
• [Privacy Masking](examples/privacy-masking.md) - Hide sensitive fields from agents
• [Remote Assist](examples/remote-assist.md) - Agent can scroll customer's page
• [Multi-Tab Persistence](examples/multi-tab-persistence.md) - Session continues across tabs
• [BYOP Mode](examples/byop-custom-pin.md) - Bring Your Own PIN with npm integration

Troubleshooting:

• [Common Issues](troubleshooting/common-issues.md) - Quick diagnostics and solutions
• [Error Codes](troubleshooting/error-codes.md) - Complete error reference
• [CORS and CSP](troubleshooting/cors-csp.md) - Cross-origin and security policy configuration
• [Browser Compatibility](troubleshooting/browser-compatibility.md) - Supported browsers and limitations
• [5-Minute Runbook](RUNBOOK.md) - Fast preflight checks before deep debugging

Reference:

• [API Reference](references/api-reference.md) - Complete SDK methods and events
• [Settings Reference](references/settings-reference.md) - All initialization settings
• Integrated Index - see the section below in this file

SDK Overview

The Zoom Cobrowse SDK is a JavaScript library that provides:

• Real-Time Co-Browsing: Agent sees customer's browser activity live
• PIN-Based Sessions: Secure 6-digit PIN for customer-to-agent connection
• Annotation Tools: Drawing, highlighting, vanishing pen, rectangle, color picker
• Privacy Masking: CSS selector-based masking of sensitive form fields
• Remote Assist: Agent can scroll customer's page (with consent)
• Multi-Tab Persistence: Session continues when customer opens new tabs
• Auto-Reconnection: Session recovers from page refresh (2-minute window)
• Session Events: Real-time events for session state changes
• HTTPS Required: Secure connections (HTTP only works on loopback/local development hosts)
• No Plugins: Pure JavaScript, no browser extensions needed

Two Roles Architecture

Cobrowse has two distinct roles, each with different integration patterns:

Key Insight: Customer and agent use different integration methods but the same JWT authentication pattern.

Read This First (Critical)

For customer/agent demos, treat the PIN from customer SDK event pincode_updated as the only user-facing PIN.

• Show one clearly labeled value in UI (for example, Support PIN).
• Use that same PIN for agent join.
• Do not expose provisional/debug PINs from backend pre-start records to users.

If these rules are ignored, agent desk often fails with Pincode is not found / code 30308.

Typical Production Flow (Most Common)

This is the flow most teams implement first, and what users usually expect in demos:

1. Customer starts session first (role_type=1)

• Backend creates/records session
• Backend returns customer JWT
• Customer SDK starts and receives a PIN

1. Agent joins second (role_type=2)

• Agent enters customer PIN
• Backend validates PIN and session state
• Backend returns agent JWT
• Agent opens Zoom-hosted desk iframe (or custom npm agent UI in BYOP)

If a demo only has one generic "session" user, it is incomplete for real cobrowse operations.

Prerequisites

Platform Requirements

• Supported Browsers:
• Chrome 80+ ✓
• Firefox 78+ ✓
• Safari 14+ ✓
• Edge 80+ ✓
• Internet Explorer ✗ (not supported)

• Network Requirements:
• HTTPS required (HTTP works on loopback/local development hosts only)
• Allow cross-origin requests to *.zoom.us
• CSP headers must allow Zoom domains (see CORS and CSP guide)

• Third-Party Cookies:
• Must enable third-party cookies for refresh reconnection
• Privacy mode may limit certain features

Zoom Account Requirements

1. Zoom Workplace Account with SDK Universal Credit
2. Video SDK App created in Zoom Marketplace
3. Cobrowse SDK Credentials from the app's Cobrowse tab

Note: Cobrowse SDK is a feature of Video SDK (not a separate product).

Credentials Overview

You'll receive 4 credentials from Zoom Marketplace → Video SDK App → Cobrowse tab:

Critical: SDK Key is public (embedded in CDN URL), but SDK Secret must never be exposed client-side.

Quick Start

Step 1: Get SDK Credentials

1. Go to Zoom Marketplace
2. Open your Video SDK App (or create one)
3. Navigate to the Cobrowse tab
4. Copy your credentials:

• SDK Key
• SDK Secret
• API Key (optional)
• API Secret (optional)

Step 2: Set Up Token Server

Deploy a server-side endpoint to generate JWTs. Use the official sample:

git clone https://github.com/zoom/cobrowsesdk-auth-endpoint-sample.git
cd cobrowsesdk-auth-endpoint-sample
npm install
 
# Create .env file
cat > .env << EOF
ZOOM_SDK_KEY=your_sdk_key_here
ZOOM_SDK_SECRET=your_sdk_secret_here
PORT=4000
EOF
 
npm start

Token endpoint:

// POST https://YOUR_TOKEN_SERVICE_BASE_URL
{
  "role": 1,           // 1 = customer, 2 = agent
  "userId": "user123",
  "userName": "John Doe"
}
// Response
{
  "token": "eyJhbGciOiJIUzI1NiIs..."
}

Step 3: Customer Side Integration (CDN)

<!DOCTYPE html>
<html>
<head>
  <title>Customer - Cobrowse Demo</title>
  <script type="module">
    const ZOOM_SDK_KEY = 'YOUR_SDK_KEY';
    
    // Load SDK from CDN
    (function(r, a, b, f, c, d) {
      r[f] = r[f] || { init: function() { r.ZoomCobrowseSDKInitArgs = arguments }};
      var fragment = a.createDocumentFragment();
      function loadJs(url) {
        c = a.createElement(b);
        d = a.getElementsByTagName(b)[0];
        c["async"] = false;
        c.src = url;
        fragment.appendChild(c);
      }
      loadJs(`https://us01-zcb.zoom.us/static/resource/sdk/${ZOOM_SDK_KEY}/js/2.13.2`);
      d.parentNode.insertBefore(fragment, d);
    })(window, document, "script", "ZoomCobrowseSDK");
  </script>
</head>
<body>
  <h1>Customer Support</h1>
  <button id="cobrowse-btn" disabled>Loading...</button>
  
  <!-- Sensitive fields - will be masked from agent -->
  <label>SSN: <input type="text" class="pii-mask" placeholder="XXX-XX-XXXX"></label>
  <label>Credit Card: <input type="text" class="pii-mask" placeholder="XXXX-XXXX-XXXX-XXXX"></label>
  
  <script type="module">
    let sessionRef = null;
    
    const settings = {
      allowAgentAnnotation: true,
      allowCustomerAnnotation: true,
      piiMask: {
        maskCssSelectors: ".pii-mask",
        maskType: "custom_input"
      }
    };
    
    ZoomCobrowseSDK.init(settings, function({ success, session, error }) {
      if (success) {
        sessionRef = session;
        
        // Listen for PIN code
        session.on("pincode_updated", (payload) => {
          console.log("PIN Code:", payload.pincode);
          // IMPORTANT: this is the PIN agent should use
          alert(`Share this PIN with agent: ${payload.pincode}`);
        });
        
        // Listen for session events
        session.on("session_started", () => console.log("Session started"));
        session.on("agent_joined", () => console.log("Agent joined"));
        session.on("agent_left", () => console.log("Agent left"));
        session.on("session_ended", () => console.log("Session ended"));
        
        document.getElementById("cobrowse-btn").disabled = false;
        document.getElementById("cobrowse-btn").innerText = "Start Cobrowse Session";
      } else {
        console.error("SDK init failed:", error);
      }
    });
    
    document.getElementById("cobrowse-btn").addEventListener("click", async () => {
      // Fetch JWT from your server
      const response = await fetch("https://YOUR_TOKEN_SERVICE_BASE_URL", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          role: 1,
          userId: "customer_" + Date.now(),
          userName: "Customer"
        })
      });
      const { token } = await response.json();
      
      // Start cobrowse session
      sessionRef.start({ sdkToken: token });
    });
  </script>
</body>
</html>

Step 4: Agent Side Integration (Iframe)

<!DOCTYPE html>
<html>
<head>
  <title>Agent Portal</title>
</head>
<body>
  <h1>Agent Portal</h1>
  <iframe 
    id="agent-iframe"
    width="1024" 
    height="768"
    allow="autoplay *; camera *; microphone *; display-capture *; geolocation *;"
  ></iframe>
  
  <script>
    async function connectAgent() {
      // Fetch JWT from your server
      const response = await fetch("https://YOUR_TOKEN_SERVICE_BASE_URL", {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({
          role: 2,
          userId: "agent_" + Date.now(),
          userName: "Support Agent"
        })
      });
      const { token } = await response.json();
      
      // Load Zoom agent portal
      const iframe = document.getElementById("agent-iframe");
      iframe.src = `https://us01-zcb.zoom.us/sdkapi/zcb/frame-templates/desk?access_token=${token}`;
    }
    
    connectAgent();
  </script>
</body>
</html>

Step 5: Test the Integration

1. Open two separate browsers (or incognito + normal)
2. Customer browser: Open customer page, click "Start Cobrowse Session"
3. Customer browser: Note the 6-digit PIN displayed
4. Agent browser: Open agent page, enter the PIN code
5. Both browsers: Session connects, agent can see customer's page
6. Test features: Annotations, data masking, remote assist

Key Features

1. Annotation Tools

Both customer and agent can draw on the shared screen:

const settings = {
  allowAgentAnnotation: true,      // Agent can draw
  allowCustomerAnnotation: true    // Customer can draw
};

Available tools:

• Pen (persistent)
• Vanishing pen (disappears after 4 seconds)
• Rectangle
• Color picker
• Eraser
• Undo/Redo

2. Privacy Masking

Hide sensitive fields from agents using CSS selectors:

const settings = {
  piiMask: {
    maskType: "custom_input",           // Mask specific fields
    maskCssSelectors: ".pii-mask, #ssn", // CSS selectors
    maskHTMLAttributes: "data-sensitive=true" // HTML attributes
  }
};

Supported masking:

• Text nodes ✓
• Form inputs ✓
• Select elements ✓
• Images ✗ (not supported)
• Links ✗ (not supported)

3. Remote Assist

Agent can scroll the customer's page:

const settings = {
  remoteAssist: {
    enable: true,
    enableCustomerConsent: true,        // Customer must approve
    remoteAssistTypes: ['scroll_page'], // Only scroll supported
    requireStopConfirmation: false      // Confirmation when stopping
  }
};

4. Multi-Tab Session Persistence

Session continues when customer opens new tabs:

const settings = {
  multiTabSessionPersistence: {
    enable: true,
    stateCookieKey: '$$ZCB_SESSION$$'  // Cookie key (base64 encoded)
  }
};

Session Lifecycle

Customer Flow

1. Load SDK → CDN script loads ZoomCobrowseSDK
2. Initialize → ZoomCobrowseSDK.init(settings, callback)
3. Fetch JWT → Request token from your server (role_type=1)
4. Start Session → session.start({ sdkToken })
5. PIN Generated → pincode_updated event fires
6. Share PIN → Customer gives 6-digit PIN to agent
7. Agent Joins → agent_joined event fires
8. Session Active → Real-time synchronization begins
9. End Session → session.end() or agent leaves

Agent Flow

1. Fetch JWT → Request token from your server (role_type=2)
2. Load Iframe → Point to Zoom agent portal with token
3. Enter PIN → Agent inputs customer's 6-digit PIN
4. Connect → session_joined event fires
5. View Session → Agent sees customer's browser
6. Use Tools → Annotations, remote assist, zoom
7. Leave Session → Click "Leave Cobrowse" button

Session Recovery (Auto-Reconnect)

When customer refreshes the page:

ZoomCobrowseSDK.init(settings, function({ success, session, error }) {
  if (success) {
    const sessionInfo = session.getSessionInfo();
    
    // Check if session is recoverable
    if (sessionInfo.sessionStatus === 'session_recoverable') {
      session.join();  // Auto-rejoin previous session
    } else {
      // Start new session
      session.start({ sdkToken });
    }
  }
});

Recovery window: 2 minutes. After 2 minutes, session ends.

Critical Gotchas and Best Practices

⚠️ CRITICAL: SDK Secret Must Stay Server-Side

Problem: Developers often accidentally embed SDK Secret in frontend code.

Solution:

• ✓ SDK Key → Safe to expose (embedded in CDN URL)
• ✗ SDK Secret → Never expose (use for JWT signing server-side)

// ❌ WRONG - Secret exposed in frontend
const jwt = signJWT(payload, 'YOUR_SDK_SECRET');  // Security risk!
// ✅ CORRECT - Secret stays on server
const response = await fetch('/api/token', {
  method: 'POST',
  body: JSON.stringify({ role: 1, userId, userName })
});
const { token } = await response.json();

SDK Key vs API Key (Different Purposes!)

Common mistake: Using API Key instead of SDK Key in JWT app_key claim.

Session Limits

Session Timeout Behavior

HTTPS Requirement

Problem: SDK doesn't load on HTTP sites.

Solution:

• Production: Use HTTPS ✓
• Development: Use a loopback host for local HTTP testing ✓
• Development: Use a local HTTPS endpoint with a trusted/self-signed cert if required ✓

Third-Party Cookies Required

Problem: Refresh reconnection doesn't work.

Solution: Enable third-party cookies in browser settings.

Affected scenarios:

• Browser privacy mode
• Safari with "Prevent cross-site tracking" enabled
• Chrome with "Block third-party cookies" enabled

Distribution Method Confusion

Key Insight: If you want npm integration, you must use BYOP (Bring Your Own PIN) mode.

Cross-Origin Iframe Handling

Problem: Cobrowse doesn't work in cross-origin iframes.

Solution: Inject SDK snippet into cross-origin iframes:

<script>
const ZOOM_SDK_KEY = "YOUR_SDK_KEY_HERE";
 
(function(r,a,b,f,c,d){r[f]=r[f]||{init:function(){r.ZoomCobrowseSDKInitArgs=arguments}};
var fragment=a.createDocumentFragment();function loadJs(url) {c=a.createElement(b);d=a.getElementsByTagName(b)[0];c.async=false;c.src=url;fragment.appendChild(c);};
loadJs('https://us01-zcb.zoom.us/static/resource/sdk/${ZOOM_SDK_KEY}/js');d.parentNode.insertBefore(fragment,d);})(window,document,'script','ZoomCobrowseSDK');
</script>

Same-origin iframes: No extra setup needed.

Known Limitations

Synchronization Limits

Not synchronized:

• HTML5 Canvas elements
• WebGL content
• Audio and Video elements
• Shadow DOM
• PDF rendered with Canvas
• Web Components

Partially synchronized:

• Drop-down boxes (only selected result)
• Date pickers (only selected result)
• Color pickers (only selected result)

Rendering Limits

• High-resolution images may be compressed
• Different screen sizes may cause CSS media query differences
• Cross-origin images may not render (CORS restrictions)
• Cross-origin fonts may not render (CORS restrictions)

Masking Limits

Supported:

• Text nodes ✓
• Form inputs ✓
• Select elements ✓

Not supported:

• <img> elements ✗
• Links ✗

Complete Documentation Library

This skill includes comprehensive guides organized by category:

Core Concepts

• [Two Roles Pattern](concepts/two-roles-pattern.md) - Customer vs Agent architecture
• [Session Lifecycle](concepts/session-lifecycle.md) - Complete flow from start to end
• [JWT Authentication](concepts/jwt-authentication.md) - Token structure and signing
• [Distribution Methods](concepts/distribution-methods.md) - CDN vs npm (BYOP)

Examples

• [Customer Integration](examples/customer-integration.md) - Complete customer-side setup
• [Agent Integration](examples/agent-integration.md) - Iframe and npm agent setups
• [Annotations](examples/annotations.md) - Drawing tools configuration
• [Privacy Masking](examples/privacy-masking.md) - Field masking patterns
• [Remote Assist](examples/remote-assist.md) - Agent page control
• [Multi-Tab Persistence](examples/multi-tab-persistence.md) - Cross-tab sessions
• [BYOP Custom PIN](examples/byop-custom-pin.md) - Custom PIN codes

References

• [API Reference](references/api-reference.md) - Complete SDK methods and events
• [Settings Reference](references/settings-reference.md) - All initialization settings
• [Error Codes](references/error-codes.md) - Complete error reference
• [Session Events](references/session-events.md) - All event types

Troubleshooting

• [Common Issues](troubleshooting/common-issues.md) - Quick diagnostics
• [Error Codes](troubleshooting/error-codes.md) - Error code reference
• [CORS and CSP](troubleshooting/cors-csp.md) - Cross-origin configuration
• [Browser Compatibility](troubleshooting/browser-compatibility.md) - Browser support

Resources

• Official Docs: https://developers.zoom.us/docs/cobrowse-sdk/
• API Reference: https://marketplacefront.zoom.us/sdk/cobrowse/
• Quickstart Repo: https://github.com/zoom/CobrowseSDK-Quickstart
• Auth Endpoint Sample: https://github.com/zoom/cobrowsesdk-auth-endpoint-sample
• Dev Forum: https://devforum.zoom.us/
• Developer Blog: https://developers.zoom.us/blog/?category=zoom-cobrowse-sdk

Need help? Start with Integrated Index section below for complete navigation.

Integrated Index

_This section was migrated from SKILL.md._

Complete navigation guide for all Cobrowse SDK documentation.

Getting Started (Start Here!)

If you're new to Zoom Cobrowse SDK, follow this learning path:

1. [SKILL.md](SKILL.md) - Main overview and quick start
2. [5-Minute Runbook](RUNBOOK.md) - Preflight checks for common failures
3. [Get Started Guide](get-started.md) - Step-by-step setup from credentials to first session
4. [Session Lifecycle](concepts/session-lifecycle.md) - Understand the complete customer and agent flow
5. [Customer Integration](examples/customer-integration.md) - Integrate SDK into your website
6. [Agent Integration](examples/agent-integration.md) - Set up agent portal

Core Concepts

Foundational concepts you need to understand:

• [Two Roles Pattern](concepts/two-roles-pattern.md) - Customer (role_type=1) vs Agent (role_type=2) architecture
• [Session Lifecycle](concepts/session-lifecycle.md) - Complete flow: init → start → PIN → connect → end
• [JWT Authentication](concepts/jwt-authentication.md) - Token structure, signing, SDK Key vs API Key
• [Distribution Methods](concepts/distribution-methods.md) - CDN vs npm (BYOP mode)

Examples and Patterns

Complete working examples for common scenarios:

Session Management

• [Customer Integration](examples/customer-integration.md) - Complete customer-side implementation (CDN and npm)
• [Agent Integration](examples/agent-integration.md) - Iframe and npm agent setup patterns
• [Session Events](examples/session-events.md) - Handle all session lifecycle events
• [Auto-Reconnection](examples/auto-reconnection.md) - Page refresh and session recovery

Features

• [Annotation Tools](examples/annotations.md) - Enable drawing, highlighting, vanishing pen
• [Privacy Masking](examples/privacy-masking.md) - Mask sensitive fields with CSS selectors
• [Remote Assist](examples/remote-assist.md) - Agent can scroll customer's page
• [Multi-Tab Persistence](examples/multi-tab-persistence.md) - Session continues across browser tabs
• [BYOP Custom PIN](examples/byop-custom-pin.md) - Bring Your Own PIN with npm integration

References

Complete API and configuration references:

SDK Reference

• [API Reference](references/api-reference.md) - All SDK methods and interfaces
• ZoomCobrowseSDK.init()
• session.start()
• session.join()
• session.end()
• session.on()
• session.getSessionInfo()

• [Settings Reference](references/settings-reference.md) - All initialization settings
• allowAgentAnnotation
• allowCustomerAnnotation
• piiMask
• remoteAssist
• multiTabSessionPersistence

• [Session Events Reference](references/session-events.md) - All event types
• pincode_updated
• session_started
• session_ended
• agent_joined
• agent_left
• session_error
• session_reconnecting
• remote_assist_started
• remote_assist_stopped

Error Reference

• [Error Codes](references/error-codes.md) - Complete error code reference
• 1001-1017: Session errors
• 2001: Token errors
• 9999: Service errors

Official Documentation

• [Get Started](references/get-started.md) - Official get started documentation (crawled)
• [Features](references/features.md) - Official features documentation (crawled)
• [Authorization](references/authorization.md) - Official JWT authorization docs (crawled)
• [API Documentation](references/api.md) - Crawled API reference docs

Troubleshooting

Quick diagnostics and common issue resolution:

• [Common Issues](troubleshooting/common-issues.md) - Quick fixes for frequent problems
• SDK not loading
• Token generation fails
• Agent can't connect
• Fields not masked
• Session doesn't reconnect after refresh

• [Error Codes](troubleshooting/error-codes.md) - Error code lookup and solutions
• Session start/join failures (1001, 1011, 1016)
• Session limit errors (1002, 1004, 1012, 1013, 1015)
• PIN code errors (1006, 1008, 1009, 1010)
• Token errors (2001)

• [CORS and CSP](troubleshooting/cors-csp.md) - Cross-origin and Content Security Policy setup
• Access-Control-Allow-Origin headers
• Content-Security-Policy headers
• Cross-origin iframe handling
• Same-origin iframe handling

• [Browser Compatibility](troubleshooting/browser-compatibility.md) - Browser requirements and limitations
• Supported browsers (Chrome 80+, Firefox 78+, Safari 14+, Edge 80+)
• Internet Explorer not supported
• Privacy mode limitations
• Third-party cookie requirements

By Use Case

Find documentation by what you're trying to do:

I want to...

Set up cobrowse for the first time:

• Get Started Guide
• JWT Authentication
• Customer Integration
• Agent Integration

Add annotation tools:

• Annotation Tools Example
• Settings Reference - allowAgentAnnotation
• Settings Reference - allowCustomerAnnotation

Hide sensitive data from agents:

• Privacy Masking Example
• Settings Reference - piiMask

Let agents control customer's page:

• Remote Assist Example
• Settings Reference - remoteAssist

Use custom PIN codes:

• BYOP Custom PIN Example
• JWT Authentication - enable_byop

Handle page refreshes:

• Auto-Reconnection Example
• Session Lifecycle - Recovery

Integrate with npm (not CDN):

• BYOP Custom PIN Example
• Distribution Methods

Debug session connection issues:

• Common Issues
• Error Codes
• Session Events - session_error

Configure CORS and CSP headers:

• CORS and CSP Guide
• Browser Compatibility

By Error Code

Quick lookup for error code solutions:

Session Errors

• 1001 (SESSION_START_FAILED) → Error Codes
• 1002 (SESSION_CONNECTING_IN_PROGRESS) → Error Codes
• 1004 (SESSION_COUNT_LIMIT) → Error Codes
• 1011 (SESSION_JOIN_FAILED) → Error Codes
• 1012 (SESSION_CUSTOMER_COUNT_LIMIT) → Error Codes
• 1013 (SESSION_AGENT_COUNT_LIMIT) → Error Codes
• 1015 (SESSION_DUPLICATE_USER) → Error Codes
• 1016 (NETWORK_ERROR) → Error Codes
• 1017 (SESSION_CANCELING_IN_PROGRESS) → Error Codes

PIN Errors

• 1006 (SESSION_JOIN_PIN_NOT_FOUND) → Error Codes
• 1008 (SESSION_PIN_INVALID_FORMAT) → Error Codes
• 1009 (SESSION_START_PIN_REQUIRED) → Error Codes
• 1010 (SESSION_START_PIN_CONFLICT) → Error Codes

Auth Errors

• 2001 (TOKEN_INVALID) → Error Codes

Service Errors

• 9999 (UNDEFINED) → Error Codes

Official Resources

External documentation and samples:

• Official Docs: https://developers.zoom.us/docs/cobrowse-sdk/
• API Reference: https://marketplacefront.zoom.us/sdk/cobrowse/
• Quickstart Repo: https://github.com/zoom/CobrowseSDK-Quickstart
• Auth Endpoint Sample: https://github.com/zoom/cobrowsesdk-auth-endpoint-sample
• Dev Forum: https://devforum.zoom.us/
• Developer Blog: https://developers.zoom.us/blog/?category=zoom-cobrowse-sdk

Documentation Structure

cobrowse-sdk/
├── SKILL.md                    # Main skill entry point
├── SKILL.md                    # This file - complete navigation
├── get-started.md              # Step-by-step setup guide
│
├── concepts/                   # Core concepts
│   ├── two-roles-pattern.md
│   ├── session-lifecycle.md
│   ├── jwt-authentication.md
│   └── distribution-methods.md
│
├── examples/                   # Working examples
│   ├── customer-integration.md
│   ├── agent-integration.md
│   ├── annotations.md
│   ├── privacy-masking.md
│   ├── remote-assist.md
│   ├── multi-tab-persistence.md
│   ├── byop-custom-pin.md
│   ├── session-events.md
│   └── auto-reconnection.md
│
├── references/                 # API and config references
│   ├── api-reference.md        # SDK methods
│   ├── settings-reference.md   # Init settings
│   ├── session-events.md       # Event types
│   ├── error-codes.md          # Error reference
│   ├── get-started.md          # Official docs (crawled)
│   ├── features.md             # Official docs (crawled)
│   ├── authorization.md        # Official docs (crawled)
│   └── api.md                  # API docs (crawled)
│
└── troubleshooting/            # Problem resolution
    ├── common-issues.md
    ├── error-codes.md
    ├── cors-csp.md
    └── browser-compatibility.md

Search Tips

Find by keyword:

• "annotation" → Annotation Tools
• "mask" or "privacy" → Privacy Masking
• "PIN" or "custom PIN" → BYOP Custom PIN
• "JWT" or "token" → JWT Authentication
• "error" → Error Codes
• "CORS" or "CSP" → CORS and CSP
• "iframe" → Agent Integration
• "npm" → Distribution Methods, BYOP
• "refresh" or "reconnect" → Auto-Reconnection
• "agent" → Agent Integration, Two Roles Pattern
• "customer" → Customer Integration, Two Roles Pattern

Not finding what you need? Check the Official Documentation or ask on the Dev Forum.

Environment Variables

• See references/environment-variables.md for standardized .env keys and where to find each value.