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This PR adds end-to-end HLS stream detection, interception, and playback to the viewer. The following root causes from the QA audit are fixed: - Restore dropped HLS detection strategies (6-strategy per-tab query) - Add deep-probe scanning for config globals and iframe manifests - Add standalone interceptors.js for CSP-compliant runtime injection - Fix viewer.js string entry handling for legacy storage entries - Fix manifest.json web_accessible_resources for interceptors.js - Disable modulePreload polyfill for Chrome MV3 compatibility - Run deep probe and scraper in MAIN world for page global access - Fallback to src as HLS manifest when hlsManifest field is missing The viewer.js codebase has been refactored from a monolithic wirePlaybackTracking() into modular single-responsibility functions: PanelState, EventWiring, BufferMonitor, PanelRenderer, AggregateRenderer, PanelFactory. Additionally: - Remove debug console.log statements from production code - Fix dead code in m3u8DeepProbeFn walk() that prevented config global manifest detection - Add eslint config with 141 rules and .eslintignore - Add 44 new tests (83/83 total passing) covering HLS detection, config validation, edge cases, and integration scenarios - Pin HLS.js CDN version to 1.5.17 (not floating/latest) - Add grid-optimized HLS config with 10s buffer cap - Add cleanup hooks for HLS instance destruction on page unload Changed files (18): - src/viewer/viewer.js (+834) - src/viewer/index.js (+870) - src/viewer/viewer.test.js (+976, new) - src/viewer/index.test.js (+481, new) - src/inject/interceptors.js (+169, new) - src/content/content.js (+139) - __tests__/hls_qa.test.mjs (+1168, new) - manifest.json (+6) - vite.config.ts (+5) - __tests__/run.mjs (+2) - __tests__/config_validation.test.mjs (+102, new) - eslint.config.js (+24, new) - .eslintignore (+1, new) - QA_REPORT_HLS.md (+160, new) - __tests__/data_flow.test.mjs (+/-5) - __tests__/schema.test.mjs (+/-5) - __tests__/viewer_integration.test.mjs (+/-4) - src/background/background.js (-2)
Goon Plugin
A Chrome extension (Manifest V3) that finds videos on the current page and displays them in a 2x2 grid.
Features
- Click the extension icon → "Find Videos" to scan the current tab for all
<video>elements - Videos are listed in the popup for reference (clickable links, "Copy All URLs" button)
- Click "Open Viewer" to open a new window with videos in a 2x2 grid (autoplay muted)
- Click "Clear" to reset the stored video list
Getting started
# 1. Install deps
npm i
# 2. Run in watch mode
npm run dev
# 3. Build for distribution
npm run build
Loading in Chrome
- Open
chrome://extensions/ - Enable Developer mode (top-right)
- Click Load unpacked → select the project root folder (where
manifest.jsonis located)
Project structure
manifest.json — Extension manifest (MV3)
package.json — Dev tooling (Vite + Vitest + TS)
vite.config.ts — Build config
src/
background/ — Service worker (MV3 background)
content/ — Content script
viewer/ — Popup UI + video viewer
index.html — Popup (Find Videos, Open Viewer buttons)
index.js — Popup logic (scans current tab for videos)
index.css — Popup styles
viewer.html — Viewer page (2x2 video grid in new window)
viewer.js — Viewer logic (renders video panels)
viewer.css — Viewer grid styles
icons/ — Extension icons (place .png files here)
Recommended extensions (VS Code)
- Chrome Extension Developer (extension-list-viewer)
- ESLint
- Prettier
VS Code workspace
Open goon_plugin.code-workspace to get the project with recommended extensions pre-installed.