I have enable w3 total HTML, JS, CSS manual minify and added all the necessary js and CSS files. For HTML I use HTML tidy, others use w3 total default minify method.
But, when I'm testing my site performance in Google page speed insight (after empty all cache and purge CDN). It shows I have to minify HTML, JS and CSS. However my JS and CSS are properly combined.
What could be the reason? Are there anyway to fix this matter?