StaticDelivr: Free CDN, Image Optimization & Speed

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2.5.2

• Improved: Complete code quality overhaul with full WordPress Coding Standards (WPCS) compliance
• Improved: Added comprehensive PHPDoc documentation across all plugin files
• Improved: Enhanced CI/CD pipeline with automated code quality checks via GitHub Actions
• Improved: Refactored code formatting, indentation, and spacing throughout the codebase
• Improved: Added development tooling for easier maintenance and testing
• Improved: Strengthened infrastructure for better reliability and maintainability

2.5.1

• Fixed: Resolved “Admin Leak” issue where images were incorrectly rewritten to CDN URLs inside the WordPress dashboard.
• Fixed: Improved compatibility with the Block Editor (Gutenberg) by disabling image rewriting for REST API requests.
• Improved: Ensures 100% stability in the Media Library and Post Editor by serving local files for administrative tasks.

2.5.0

• New: Diagnostic Console API. You can now type window.staticDelivr.status() in the browser console to view active settings, version, and debug status instantly.
• New: Added window.staticDelivr.reset() console command to clear fallback states, useful for developers testing image recovery.
• Improved: Refactored diagnostic logic into a dedicated DevTools module to keep the fallback script lightweight and focused.
• Improved: Performance optimization – diagnostic scripts are printed in the footer to prevent render blocking.

2.4.1

• Fixed: Resolved an issue where lazy-loaded images could fail silently without triggering the fallback mechanism (Browser Intervention).
• Improved: Fallback script now aggressively removes srcset and loading attributes to force browsers to retry failed images immediately.
• New: Added a “Sweeper” function to automatically detect and repair broken images that were missed by standard error listeners.
• Fixed: Improved error detection logic to prioritize currentSrc, ensuring failures in responsive thumbnails are caught even if the main src is valid.

2.4.0

• New: Smart Dimension Detection. The plugin now automatically identifies missing width and height attributes for WordPress images and restores them using attachment metadata.
• Improved: Resolves Google PageSpeed Insights warnings regarding “Explicit width and height” for image elements.
• Improved: Enhances Cumulative Layout Shift (CLS) scores by ensuring browsers reserve the correct aspect ratio during image loading.
• Improved: Synchronized CDN URL optimization parameters with detected database dimensions for more accurate image scaling.

2.3.0

• Major Improvement: Significant performance boost by removing blocking DNS lookups during image processing.
• Fixed: Resolved “Path Math” issues where thumbnail URLs could become mangled by WordPress core.
• Fixed: Robust HTML parsing for images now handles special characters (like >) in alt text without breaking layout.
• Improved: Optimized thumbnail delivery by removing redundant regex parsing passes.
• Hardened: Improved path parsing safety to ensure full compatibility with modern PHP 8.x environments.
• Refined: Cleaned up internal logging and removed legacy recovery logic in favor of a more stable architecture.

2.2.2

• Fixed infinite recursion in image URL filters by removing database lookups for malformed CDN URLs
• Improved image handling by simplifying thumbnail HTML rewriting to avoid redundant processing
• Removed unnecessary parent theme slug handling in verification for better performance

2.2.1

• Fixed an issue with infinite recursion in the rewrite_attachment_image_src and rewrite_attachment_url filters.
• Improved handling of image URLs to prevent errors when retrieving attachment URLs.

2.2.0

• Fixed: Critical Bug – Improved recovery for malformed CDN URLs by looking up original attachment paths in the database instead of guessing dates
• Improved – Better handling of older content with incorrect CDN URLs

2.1.0

• New: Multi-language Support – Added full localization for over 30 languages to support a global user base.
• Added translations for Spanish, French, German, Italian, Portuguese, Arabic, Chinese, Japanese, and many others
• Full RTL (Right-to-Left) support for languages like Arabic and Persian
• Integrated with wordpress.org translation system for future community contributions
• New: Dev Tools & Debugging – Enhanced controls for developers to troubleshoot in local environments.
• Added Debug Mode for detailed logging of image rewrite operations to the error log
• New “Bypass Localhost” option to test CDN rewrites on .local, .test, and .dev domains
• Improved dynamic debug mode support in the fallback failure script
• Improved: Reliability & Assets – Refined asset handling and refreshed visuals.
• Hardened image processing to detect and recover from malformed or legacy StaticDelivr URLs
• Updated plugin branding with refreshed icons and new dashboard screenshots
• Better handling of protocol-relative and site-relative URLs during optimization

2.0.0

• Major Refactor: Modular Architecture – Complete code reorganization for better maintainability
• Split monolithic 2900+ line file into 9 modular, single-responsibility class files
• New organized directory structure with dedicated includes/ folder
• Implemented singleton pattern across all component classes
• Main orchestration class (StaticDelivr) now manages all plugin components
• Separate classes for each feature: Assets, Images, Google Fonts, Verification, Failure Tracker, Fallback, Admin
• Improved code organization following WordPress plugin development best practices
• Enhanced dependency management with clear component initialization order
• Better code maintainability with focused, testable classes
• Streamlined main plugin file as lightweight bootstrap
• All functionality preserved – no breaking changes to features or settings
• Improved inline documentation and PHPDoc comments throughout
• Better separation of concerns for future feature development
• Foundation for easier testing and extension of plugin features

1.7.1

• Fixed heredoc syntax to comply with WordPress coding standards
• Fixed output escaping for failure statistics
• Shortened plugin description to meet 150 character limit
• Code quality improvements for WordPress.org submission

1.7.0

• New: Failure Memory System – Plugin now remembers CDN failures and serves resources locally
• Client-side failure detection using non-blocking beacon API
• Server-side failure tracking with threshold-based blocking
• After 2 failures, resources are served locally for 24 hours
• Automatic cache expiry – resources retry after 24 hours
• Failure statistics visible in admin settings when failures exist
• One-click “Clear Failure Cache” button to retry all resources
• Images blocked based on URL hash for precise tracking
• Assets blocked based on theme/plugin slug for efficient grouping
• Improved fallback script with failure reporting
• Added AJAX endpoint for secure failure reporting with nonce verification
• Daily cleanup of expired failure entries via cron
• Updated admin UI to show failure counts and blocked resources
• Added info box explaining failure memory feature

1.6.0

• New: Smart Asset Detection – Automatically detects if themes/plugins exist on wordpress.org
• Only wordpress.org assets are served via CDN – custom/premium assets served locally
• Zero configuration needed – works with any theme/plugin combination
• Added verification dashboard showing CDN vs local status for all assets
• Child theme support – checks parent theme availability on wordpress.org
• Multi-layer caching: in-memory, database, and WordPress transients
• Verification results cached for 7 days with automatic cleanup
• Added localhost/development environment detection for images
• Private IP ranges and .local/.test/.dev domains automatically detected
• Images from non-routable URLs served locally (CDN can’t fetch localhost)
• Added daily cron job for cache cleanup
• Theme/plugin activation hooks for immediate verification
• Cache invalidation on theme switch and plugin deletion
• Improved fallback script with better error handling
• Admin UI shows complete asset breakdown with visual indicators
• Added “Smart Detection” badge and info box explaining the system
• Performance optimized: lazy loading and batched database writes

1.5.0

• Added Google Fonts privacy proxy – automatically rewrites Google Fonts URLs to use StaticDelivr
• Google Fonts proxy strips all tracking cookies and user-identifying data – GDPR compliant
• Works with fonts loaded by themes, plugins, page builders, and inline styles
• Rewrites both fonts.googleapis.com and fonts.gstatic.com URLs
• Font files proxied via cdn.staticdelivr.com/gstatic-fonts
• Updates DNS prefetch and preconnect hints for Google Fonts
• Added new setting to enable/disable Google Fonts proxy independently
• Google Fonts proxy enabled by default for new installations
• Updated status bar to show Google Fonts status
• Added privacy and GDPR badges to settings page
• Improved output buffering for catching hardcoded Google Fonts URLs

1.4.0

• Fixed WordPress core files to use proper version instead of “trunk”
• Core files CDN URLs now include WordPress version (e.g., /wp/core/tags/6.9/ instead of /wp/core/trunk/)
• Added WordPress version detection with support for development/RC/beta versions
• Cached WordPress version to avoid repeated calls
• Updated settings page to display detected WordPress version
• Prevents cache mismatches when WordPress is updated

1.3.1

• Fixed plugin/theme version detection to ensure CDN rewriting works correctly for all plugins
• Introduced cached helper methods for theme/plugin versions to avoid repeated filesystem work per request
• Corrected plugin version detection for various plugin structures and removed incorrect path assumptions
• Updated CDN rewriting to use the new version detection
• Added rel=”noopener noreferrer” to external links

1.3.0

• Redesigned settings page with modern card-based UI
• Added “Settings” link on plugins list page for quick access
• Both features (Assets CDN & Image Optimization) now enabled by default on fresh install
• Added activation notice to guide new users
• Interactive image quality slider with live preview
• Status overview dashboard showing current configuration
• Improved toggle UX – image options dim when disabled
• Added plugin row meta links (Website, Support)
• Better visual hierarchy and clearer explanations
• Overall polish for a better user experience

1.2.1

• Improved image fallback – now automatically extracts original URL from CDN URL when images fail to load
• Fixed fallback for images blocked by Cloudflare or other security services
• Enhanced srcset fallback support
• Better error handling for edge cases

1.2.0

• Added automatic image optimization – images are now compressed and converted to modern formats (WebP, AVIF)
• Separate settings for Assets CDN (CSS/JS) and Image Optimization
• Configurable image quality (1-100)
• Selectable image output format (Auto, WebP, AVIF, JPEG, PNG)
• Images include automatic fallback to origin server
• Enhanced settings page with detailed explanations
• Improved inline documentation

1.1.0

• Added automatic fallback mechanism – if a CDN asset fails to load, the plugin automatically retries from your origin server
• Improved reliability by injecting fallback script early in page head
• Added console logging for debugging fallback events

1.0.0

• Initial release.