Title: 100% cache Last modified: September 4, 2016 --- # 100% cache * [luffer](https://wordpress.org/support/users/luffer/) * (@luffer) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/) * I’ve got the latest update and I’ve got a red light flashing in my admin bar saying cache is at 100% and using 657.15MB. Why can my cache not be bigger? I have 50GB of space on the server, I can’t see any option to set the size of the cache? Viewing 10 replies - 1 through 10 (of 10 total) * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136094) * the limit is set at half a GB, but you can change that using the `autoptimize_filter_cachecheck_maxsize`- filter. * do take into account that a huge cache (even if you have a lot of disk spare space) means there is not a lot of re-use of optimized JS, meaning your users will: (a) have to load different JS (or CSS)-files while surfing your site and( b) they might face slowdowns if the JS (or CSS) is not cached yet and hence has to be minified (minification is relatively expensive) * hope this clarifies, frank * Thread Starter [luffer](https://wordpress.org/support/users/luffer/) * (@luffer) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136134) * I’ve had to use the “Inline all CSS” option which may be causing a large cache? * I wanted to use the “Inline and Defer CSS” option, but when I enabled that option and entered my above the fold CSS the site would fail and return a 404 error when I saved. * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136147) * no, inline all CSS does not generate a bigger cache really. typically the “also aggregate inline JS” (and occasionally “also aggregate inline CSS”) is the root cause of cache size issues. * while we’re talking; might I ask you to [mark AO 2.1 as compatible with WordPress 4.6 here](https://wordpress.org/plugins/autoptimize/stats/#compatibility)( if you consider it compatible that is)? 🙂 * frank * Thread Starter [luffer](https://wordpress.org/support/users/luffer/) * (@luffer) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136149) * Well it does give a 404 error when I try and use Inline and Defer CSS.. so is it? * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136153) * good question 😉 * do you get the 404 immediately when submitting the autoptimize settings-screen, or do you get a 404 when having enabled “inline & defer” in wp-admin and going to the frontend? * and is this a fresh 2.1 install or did you upgrade from 2.0.2? * Thread Starter [luffer](https://wordpress.org/support/users/luffer/) * (@luffer) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136166) * I only get a 404 error when I try to save with the “inline & defer” option enabled. I never get a 404 on my frontend, it’s just in the admin area. * Where do you redirect users to when they hit the “save” button that’s different with the “inline and defer” option enabled? * This is an upgrade, but a fairly recent install. Only been using it about a week. * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136192) * > Where do you redirect users to when they hit the “save” button that’s different > with the “inline and defer” option enabled? * that’s the thing; it’s the exact same form submit … could you have some software( mod_security or something similar) that is checking incoming requests and blocking in some cases? * > This is an upgrade, but a fairly recent install. Only been using it about a > week. * and did you have the inline&defer problem on 2.0.2 as well? * Thread Starter [luffer](https://wordpress.org/support/users/luffer/) * (@luffer) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136208) * > that’s the thing; it’s the exact same form submit … could you have some software( > mod_security or something similar) that is checking incoming requests and blocking > in some cases? * I use Theme My Login which blocks access to wp-login.php but nothing else that I know of. * > and did you have the inline&defer problem on 2.0.2 as well? * Yes * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8136239) * in that case; have a look at your apache (or nginx or IIS or whatever webserver you’re on) access- and error-files and at your php-errorlog. something (probably on your server) is blocking the submit of the ao_settings when critical CSS is entered. and maybe ask your hoster if they have mod_security running? you could also try if submitting with `a{b:c;}` works? * Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/) * (@futtta) * [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8170779) * A similar problem [in this thread](https://wordpress.org/support/topic/inline-and-defer-css-not-working-on-mobile/), where the author was able to identify this CSS as causing the post error: * ``` @font-face { font-family: dashicons; src: url(//aoxoa.co/wp-includes/css/../fonts/dashicons.eot); } ``` * my hunch is that the `/../`, is causing a silly web app firewall to think this is a directory traversal firewall. does your critical css have something like that? - This reply was modified 9 years, 9 months ago by [Frank Goossens](https://wordpress.org/support/users/futtta/). Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘100% cache’ is closed to new replies. * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608) * [Autoptimize](https://wordpress.org/plugins/autoptimize/) * [Frequently Asked Questions](https://wordpress.org/plugins/autoptimize/#faq) * [Support Threads](https://wordpress.org/support/plugin/autoptimize/) * [Active Topics](https://wordpress.org/support/plugin/autoptimize/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/autoptimize/unresolved/) * [Reviews](https://wordpress.org/support/plugin/autoptimize/reviews/) * 10 replies * 2 participants * Last reply from: [Frank Goossens](https://wordpress.org/support/users/futtta/) * Last activity: [9 years, 9 months ago](https://wordpress.org/support/topic/100-cache/#post-8170779) * Status: not resolved