tijs.org
Framework-agnostic OAuth integration for AT Protocol (Bluesky) applications.
Add localStorage fallback for PWA OAuth
When navigating through external OAuth providers, window.opener is lost,
causing postMessage to fail. The callback now stores the result in
localStorage as a fallback mechanism.
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CHANGELOG.md
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CHANGELOG.md
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All notable changes to this project will be documented in this file.
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## [2.5.1] - 2025-01-09
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### Fixed
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- **PWA OAuth localStorage fallback**: Added localStorage-based communication as
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a fallback for PWA OAuth flows. When navigating through external OAuth
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providers (like bsky.social), the `window.opener` reference is lost, causing
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`postMessage` to fail. The callback now stores the result in localStorage,
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which the opener can read via the `storage` event or by checking localStorage
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when the popup closes.
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## [2.5.0] - 2025-01-09
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### Added
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// PWA detects standalone mode and opens OAuth in popup
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const popup = window.open("/login?handle=user.bsky&pwa=true", "oauth-popup");
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// Listen for postMessage from popup
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window.addEventListener("message", (event) => {
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if (event.data.type === "oauth-callback" && event.data.success) {
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// Listen for both postMessage and localStorage
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window.addEventListener("message", handleOAuthResult);
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window.addEventListener("storage", (e) => {
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if (e.key === "pwa-oauth-result") handleOAuthResult(JSON.parse(e.newValue));
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});
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function handleOAuthResult(data) {
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if (data.type === "oauth-callback" && data.success) {
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// Session cookie is set, reload to pick it up
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location.reload();
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}
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});
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}
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```
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### Security
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- PWA callbacks still set the session cookie for API authentication
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- The `postMessage` only sends `did` and `handle` (no tokens)
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- Fallback redirect to home page if `window.opener` is unavailable
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- localStorage data is cleared after successful read
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## [2.4.0] - 2025-12-14
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deno.json
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deno.json
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src/routes.ts
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src/routes.ts
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});
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}
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// PWA OAuth: return HTML page with postMessage
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// PWA OAuth: return HTML page that signals completion via localStorage
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// We use localStorage instead of postMessage because window.opener
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// is lost after navigating through external OAuth providers
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if (state.pwa) {
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logger.info(`PWA OAuth complete for ${state.handle}`);
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···
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border-radius: 8px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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}
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.spinner {
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width: 24px;
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height: 24px;
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border: 3px solid #e0e0e0;
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border-top-color: #FF6B6B;
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.success-icon {
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width: 48px;
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height: 48px;
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background: #10b981;
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border-radius: 50%;
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animation: spin 1s linear infinite;
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display: flex;
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align-items: center;
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justify-content: center;
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margin: 0 auto 1rem;
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}
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@keyframes spin {
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to { transform: rotate(360deg); }
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.success-icon svg {
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width: 24px;
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height: 24px;
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fill: white;
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}
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</style>
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</head>
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<body>
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<div class="message">
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<div class="spinner"></div>
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<p>Completing login...</p>
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<div class="success-icon">
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<svg viewBox="0 0 24 24"><path d="M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z"/></svg>
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</div>
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<p>Login successful!</p>
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<p style="color: #666; font-size: 14px;">You can close this window.</p>
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</div>
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<script>
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(function() {
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// Store success data in localStorage for the opener to read
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var data = {
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type: 'oauth-callback',
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success: true,
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did: ${JSON.stringify(did)},
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handle: ${JSON.stringify(state.handle)}
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handle: ${JSON.stringify(state.handle)},
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timestamp: Date.now()
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};
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localStorage.setItem('pwa-oauth-result', JSON.stringify(data));
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// Send to opener (PWA window) if available
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if (window.opener) {
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window.opener.postMessage(data, '*');
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// Close this popup after a short delay
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setTimeout(function() { window.close(); }, 500);
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} else {
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// Fallback: redirect to home (cookie is set)
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window.location.href = '/';
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// Try postMessage first (works if opener is still available)
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if (window.opener && !window.opener.closed) {
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try {
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window.opener.postMessage(data, '*');
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} catch (e) {
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// Ignore cross-origin errors
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}
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}
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// Close popup after a short delay
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setTimeout(function() {
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window.close();
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}, 1500);
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})();
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</script>
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</body>