Generalizes host-only from a single host to a controller SET. The owner (creator)
can promote/demote peers; in host-only mode the relay gate allows any controller,
not just the owner. Single-host is now the special case controllers={owner}, so
existing behavior/tests are unchanged.
- shared: CAPABILITIES.CO_HOST enabled; new SET_PEER_ROLE event; CONTROL_MODE
payload carries controllers.
- server: room.controllers Set (always incl. owner), advertised in ROOM_DATA;
gate checks controllers.has(peerId); SET_PEER_ROLE handler (owner-only, target
must be present, MAX_CONTROLLERS=10 cap, re-sync on reject); controlModePayload
helper for consistent emits; owner-leave resets controllers + falls back to
everyone, co-host-leave broadcasts the updated list (dedup/reconnect guarded).
- WS test: promote→drive, plain guest still gated, non-owner can't promote,
demote→re-gated.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Replace the implicit "hostPeerId present ⇒ feature supported" heuristic with an
explicit capabilities list the relay advertises in ROOM_DATA. Cleaner, self-
documenting, and the extensible hook for the planned co-host feature (owner
promotes guests to extra controllers) — a future 'co-host' capability + events
slot in without a protocol bump.
- shared: CAPABILITIES { HOST_CONTROL }.
- server: SERVER_CAPABILITIES advertised in ROOM_DATA.
- background: track serverCapabilities (empty against older relay), serverSupports(),
thread hostControlSupported through GET_STATUS / GET_CONTROL_MODE / CONTROL_MODE.
- popup: gate the host-control card on the explicit capability instead of hostPeerId.
Backwards-compatible both ways: old relay omits the field → feature stays hidden
(no errors); old client ignores the field. WS test asserts ROOM_DATA advertises
the capability. Adds docs/host-control-mode-TESTING.md (beta-server setup, wss
caveat, two-new-clients note, verification checklist).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Step 1 of host control mode. Adds the protocol surface only — no behavior yet:
- EVENTS.SET_CONTROL_MODE (client->server: host sets mode)
- EVENTS.CONTROL_MODE (server->client: mode changed)
- CONTROL_MODES { EVERYONE, HOST_ONLY }
Purely additive; old clients ignore the new events. Propagated to
extension/shared via build-extension. Also records the audited design
decisions in the edge-case log.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Switch the Ko-Fi support links to https://support.koalastuff.net across the
README badge, the extension footer (popup.html/template.html, label
"Support KoalaSync") and remove the now-unused KOFI_URL constant. Stop
generating/sending the anonymous uninstall token: initUninstallURL() now
registers the feedback URL without the `t` parameter or storage write.
CHANGELOG updated to match.
Also guard the client CMD_ACK path: only ACK a command sender that is still
a known peer in the room, so we don't emit ACKs to peers that already left
(which the server now drops as absent-peer ACKs anyway).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Adds application-level ping/pong between extension and relay server.
Extension sends PING every 15s, server echoes PONG. Round-trip time
displayed in Status tab (green/yellow/red color-coded).
Server also forwards PING with target peerId and routes PONG back,
enabling future peer-to-peer ping without server restart.
Extension already responds to incoming peer PINGs.
See CHANGELOG.md for details.
- Copy Logs button now generates full Markdown debug report (system, tab, connection, video, history, logs)
- Enhanced Dev tab with 20+ video state fields (network, dimensions, error, shadow DOM, platform detection)
- Platform auto-detection (YouTube, Netflix, Twitch, Prime Video, Disney+, Hulu, HBO, Vimeo, Dailymotion)
- 'No video found' diagnostic mode with hints
- Convert mockup from inline <span lang> to {{MOCK_*}} template vars (all 6 languages)
- New TwoPointZero branding: icons (16/32/48/96/128), favicons (PNG 16/32 + apple-touch + 192)
- Fix logo vertical centering via display:contents on picture wrappers
- Increase popup logo to 48px, website nav logo to 64px
- AVIF quality 70->80, speed 6->4, remove min 3KB threshold
- Add 32+96 icon sizes to manifest
- Remove amazon. from tab blacklist (unblocks Prime Video)
- Update TESTED_SERVICES.md: mark Prime Video as non-functional
- Update CONTRIBUTING.md with Copy Debug Report workflow
- Add currentServerUrl tracking: only disconnect/reconnect when server URL actually
changes, otherwise reuse existing connection and just switch rooms
- Add resolveServerUrl() helper for consistent URL resolution across handlers
- forceDisconnect() now resets currentServerUrl to null
- CONNECT and WEB_JOIN_REQUEST handlers: smart comparison before reconnecting
- Add generateRoomId(): human-readable 'ADJECTIVE-NOUN-Number' format (e.g. HAPPY-KOALA-16)
- Replace Math.random() room IDs with generateRoomId() in joinBtn and handleCreateRoom()
- Expand USERNAME_ADJECTIVES: +16 words (Turbo, Zen, Pixel, Cyber, Solar, etc.)
- Expand USERNAME_NOUNS: +12 words (Yeti, Goblin, Pirate, Ninja, Wizard, Storm, etc.)
- Add emoji mappings for all new words
- Create shared/names.js as single source of truth for emoji maps, noun
lists, adjectives, and username generation (215 animal emoji entries)
- Remove duplicated inline lists from popup.js and background.js; both
now import getAvatarForName / generateUsername from shared/names.js
- Add names.js to the build script sync list so it stays DRY across
extension builds
- Fix missing cat emoji: CoolCat now correctly resolves to 🐱
- Sort emoji map keys by length at lookup time to prevent substring
false-matches (e.g. 'caterpillar' before 'cat')
- FORCE_SYNC_TIMEOUT in shared/constants.js was 5000 but all code uses
8500ms. Update constant to 8500 and reference it in background.js
instead of hardcoded values (4 occurrences)
- Add errorToken counter in popup showError() so stale 5s timeout
doesn't clear styling of a newer error that arrived in between
- Fix EVENT_ACK handler indentation in server/index.js to match
surrounding socket.on handlers
Server Security (S-1 through S-8):
- S-1: Type-check and clamp peerId, protocolVersion, password
- S-2: Validate numeric/boolean/enum fields in relay peerData
- S-3: Construct explicit relay payload (stop spreading raw data)
- S-4: Type-check targetId and actionTimestamp in EVENT_ACK
- S-5: Restrict room IDs to [a-zA-Z0-9-] only
- S-7: Add eventCounts periodic cleanup alongside connectionCounts
- S-8: Guard version parsing against NaN bypass
Documentation (P-1, R-1 through R-6):
- P-1: Fix PRIVACY.md typo, document all in-memory data maps
- R-1/R-5: Fix stale sync-constants.bat references in shared/
- R-2: Fix stale lastTargetState ref in ARCHITECTURE.md
- R-3: Extension README title reflects cross-browser support
- R-6: Document content injection markers in scripts/README.md
Adds a new toggleable feature that detects episode transitions via
mediaTitle mutation (loadeddata/MutationObserver), pauses the video,
and waits for all room peers to load the same episode before
executing a coordinated Force Sync play at 0:00.
Protocol:
- Add EPISODE_LOBBY and EPISODE_READY events to shared/constants.js
- Add EPISODE_LOBBY_TIMEOUT (60s) constant
- Relay both new events in server/index.js
Content Script (content.js):
- Layered detection: loadeddata + MutationObserver src-change + heartbeat
- Debounced onEpisodeTransition() sends signal ONLY; no eager pause
- PAUSE_FOR_LOBBY handler pauses only after background confirms feature enabled
- startLobbyPoll() polls title match without premature pause for non-initiators
- checkAndReportLobbyReady() pauses and sends EPISODE_READY_LOCAL on match
- CONTENT_BOOT recovery for re-injection after hard navigation
Background (background.js):
- Episode lobby state persisted in chrome.storage.session with recovery
- EPISODE_CHANGED: checks setting, creates lobby, sends PAUSE_FOR_LOBBY to tab
- EPISODE_LOBBY/READY server event handlers with dedup logic
- 60s timeout cancels lobby (Option B) with Chrome failure notification
- Peer departure handled: removes from readyPeers, re-checks completion
- executeEpisodeLobby() reuses existing Force Sync pipeline at targetTime 0.0
- Lobby cleared on LEAVE_ROOM; status exposed in GET_STATUS
Popup:
- Auto-Sync Next Episode toggle in Settings tab (default: off, opt-in)
- Episode Lobby status card in Sync tab with peer readiness display
- LOBBY_UPDATE message handler for real-time UI updates
Bumps APP_VERSION and manifest to 1.2.0
Timo