Wp Rocket 3.17.3

Enhancement: Add filter rocket_youtube_thumbnail_resolution to be able to modify the resolution of the Youtube Preview image
Enhancement: Add filter do_rocket_critical_css_generation to control the autogeneration of the critical CSS
Enhancement: Insert critical CSS before CSS files when combine CSS is active
Enhancement: Check for minified file existence earlier in the minify process to improve cache generation time
Enhancement: Prevent adding DNS prefetch on uncached pages
Bugfix: Correct an issue with rocket_realpath() on windows server which was preventing minification and remove query strings from working
Bugfix: Prevent some code to be displayed when optimize CSS delivery is active because the stylesheet tag contains special characters
Bugfix: Correctly apply remove query strings even when there is no file to minify
Bugfix: Prevent a PHP warning because of a wrongly named variable in 2.11.4
Bugfix: correctly apply sizes to image when lazyload is active
Bugfix: correctly process files for minification and remove query strings when content folder is outside the WordPress directory

• Bug fix: Correctly apply JS minification/combine if there is no JS files in the header when combine option is active
• Bug fix: Correctly display some embeds from Jetpack with lazy load for iframes option active
• Bug fix: Correct conflict between Lazy Load and Cloudflare Rocket Loader
• Bug fix: Correct display issue with Optimize CSS delivery if the CSS tag doesn't have any content after the file URL
• Bug fix: Correctly save CSS/JS dynamic files as static files
• 3rd party compatibility: Auto exclude s2member dynamic files from being saved as static files to prevent issues
• 3rd party compatibility: Display warning if WP Super Minify is active at the same time as WP Rocket minification options

• Bug fix: prevent a 404 on lazyload script if URL contains "-v"
• Bug fix: correctly display initially hidden images when they come into view when lazyload is active. This should improve compatibility with sliders, tabs, accordions or carousels