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Keep web sessions alive by pinging APIs at regular intervals SessionDefibrillator - Keep Web Sessions Alive ⚠️ SECURITY WARNING Keeping sessions alive creates security risks. Your session remains active even when away from your computer. ALWAYS lock your computer when stepping away. USE AT YOUR OWN RISK. You are solely responsible for any consequences. The developers accept NO liability for damage, data loss, security breaches, or violations of website terms of service. OVERVIEW Automatically pings configured APIs at regular intervals to keep web sessions active and prevent automatic logouts. FEATURES • Configurable API endpoint pinging • Automatic session monitoring on specified websites • Kill timer that auto-stops after configured duration (security feature) • Click detection resets the kill timer automatically • Easy settings management via options page • Works with any GET endpoint CONFIGURATION 1. Click extension icon → "Open Settings" 2. Enter Host Wildcard (e.g., https://app.yourcompany.com/*) 3. Enter API URL (your keep-alive endpoint) 4. Set Session Duration (default: 120 minutes) 5. Set Ping Interval (default: 2 minutes) 6. Click "Save and Start Pinging" 7. Grant permissions when prompted HOW IT WORKS • Extension only activates on pages matching your Host Wildcard • Automatically starts pinging when you visit matching pages • Pings API at configured intervals • Kill timer resets every time you click on the page • Stops automatically after Session Duration expires (for security) • Red badge (!) indicates pinging has stopped RESTARTING AFTER TIMEOUT Method 1: Open settings → Click "Save and Start Pinging" Method 2: Refresh the webpage Method 3: Navigate to any matching page PERMISSIONS REQUIRED • alarms - For periodic pinging and kill timer • storage - To save your configuration • scripting - To inject content script on your specified domains • optional_host_permissions - To access your configured API URL and websites PRIVACY ✓ Does NOT collect personal data ✓ Does NOT transmit data to third parties ✓ Only communicates with URLs you configure ✓ Stores settings locally in your browser ✓ Does NOT track browsing activity BEST PRACTICES ✓ Only use on trusted, secure networks ✓ Always lock your computer when away ✓ Set reasonable Session Duration ✓ Use ping intervals of 1-5 minutes ✗ Don't use on public/shared computers ✗ Don't use for sensitive accounts unless necessary TROUBLESHOOTING • Not starting? Check permissions and verify Host Wildcard matches current page URL • Badge shows "!"? Pinging stopped - restart using methods above • CORS errors? Ensure API allows cross-origin requests from browser extensions • 401/403 errors? Your session expired server-side - log in again LEGAL DISCLAIMER Some websites prohibit automated keep-alive mechanisms in their terms of service. Ensure compliance with all applicable laws and website policies before use. Version 1.3 • Options page in full tab (improved reliability) • Combined permission requests (single dialog) • Simplified popup interface • Better user experience