Cross-Platform Session Syncing: One Account Across Web and Mobile

  <h2>The Challenge of Cross-Environment State</h2>
  <p>Users expect to log in once on their desktop and have their mobile native app stay in perfect sync. Achieving seamless authentication between mobile WebViews and native shells requires meticulous token coordination.</p>

  <h3>A Dual-Token Architecture</h3>
  <ul>
    <li><strong>HttpOnly Secure Refresh Cookies:</strong> Safeguard refresh tokens from cross-site scripting (XSS) in standard web browsers.</li>
    <li><strong>Encrypted Native Storage:</strong> Secure storage on mobile (iOS Keychain / Android Keystore) protecting long-lived credentials.</li>
    <li><strong>WebView Cookie Injection:</strong> Pre-seeding authentication cookies into in-app browser sessions prior to navigation to eliminate repeated login prompts.</li>
  </ul>

  <p>This hybrid approach powers the frictionless ecosystem experience across all Boad products.</p>