ESI Resolver by Joel Köbner

Resolves Edge Side Include tags locally with statistics and custom headers

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About this extension

Browser extension that automatically replaces Edge Side Include tags with actual content. Features toggle control, statistics tracking, custom headers, jump navigation, and error handling. Perfect for local ESI testing.

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Release notes for 1.0.0

Core Functionality:

✅ ESI Tag Resolution: Automatically detects and resolves <esi:include> tags on web pages
✅ ESI Comment Support: Handles ESI tags embedded in HTML comments
✅ Try/Except Blocks: Full support for <esi:try> / <esi:attempt> / <esi:except> structures
✅ Smart URL Resolution: Automatically resolves relative URLs against the current page

User Interface:

🎛️ Toggle Control: Simple on/off switch in extension popup
📊 Live Statistics: Real-time tracking of total, successful, and failed ESI requests
🔗 Jump Navigation: Click any fragment URL to scroll directly to it on the page
🎨 Visual Indicators: Dynamic icon switching (green=ON, red=OFF)

Advanced Features:

🛠️ Custom Headers: Add custom HTTP headers to ESI fragment requests
⚠️ Error Display: Clear error messages for failed ESI requests with fallback content
🧹 Statistics Management: Clear statistics per page with one click
🔄 Auto-cleanup: Automatic removal of old statistics after 1 hour

🌐 Browser Support

Firefox: Full support for Firefox 90+
Chrome: Full support for Chrome 90+  
Edge: Compatible (Chromium-based)

🔧 Technical Details

Permissions Required:

activeTab: Access current tab for ESI processing
storage: Store extension settings and statistics
<all_urls>: Make HTTP requests to fetch ESI fragments

File Structure:

Content script for ESI processing
Background script for icon management
Popup interface for user controls
Dual icon sets for enabled/disabled states

🛠️ Developer Features

Comprehensive Logging: Detailed console output for debugging
Fragment Tracking: Each processed ESI fragment gets a unique ID
Error Handling: Graceful fallbacks for network issues and malformed ESI
Cross-browser Compatibility: Uses browser API abstraction layer

Required permissions: