Conflicts with WP Fastest Cache

Have never used “WP Fastest Cache” myself, but try playing around with the options which “Minify” (and “Combine“) the JavaScript and CSS – try disabling these settings first.

It’s the same and then, is not a solution, Minify Java and CSS are two of the jobs of a plugin for cache control and site improvement. With which plugin are you sure you have not found any conflicts?

The Chrome developer console reports the following error: Uncaught TypeError: jQuery(…).owlCarousel is not a function
at HTMLDocument.<anonymous> ((index):195)
at i (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at Function.ready (jquery.js:2)
at HTMLDocument.K (jquery.js:2)

So it is not a matter of WP Fastest Cache.

I must admit I’m not a fan of caching plugins in general. Often the speed improvements are negligible and they sometime cause conflicts with plugins.

I find that enabling server GZIP compression reaps more speed benefits.

You can test this out by adding the following to your ‘.htaccess’ file:

<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/plain
AddOutputFilterByType DEFLATE text/html
AddOutputFilterByType DEFLATE text/xml
AddOutputFilterByType DEFLATE text/css
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/xhtml+xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript
AddOutputFilterByType DEFLATE application/x-javascript
AddOutputFilterByType DEFLATE application/x-httpd-php
AddOutputFilterByType DEFLATE application/x-httpd-fastphp
AddOutputFilterByType DEFLATE image/svg+xml
SetOutputFilter DEFLATE
</IfModule>

And then check if GZIP compression is working correctly by going to: https://checkgzipcompression.com/

(run some before or after speed tests on PINGDOM – https://tools.pingdom.com/)

I often gets speed improvements in excess of 30%.

• This reply was modified 6 years, 9 months ago by simonpedge.

I already have the mod deflate and the result of pingdom is A94, while gzip is 81%, i think(hope) is good.

If you do some before/after benchmarks with just adding this simple GZIP Compression code change to the “.htaccess” file of a site VS Installing full-blown caching plugins with all the bells & whistles enabled, you may be surprised.

Another piece of code you can add to your “.htaccess” file is:

## LEVERAGE BROWSER CACHING ##
## Vary: Accept-Encoding Header
<IfModule mod_headers.c>
<FilesMatch "\.(js|css|xml|gz)$">
Header append Vary: Accept-Encoding
</FilesMatch>
</IfModule>
## Expires Caching
<IfModule mod_expires.c>
ExpiresActive On
ExpiresByType image/jpg "access 1 month"
ExpiresByType image/jpeg "access 1 month"
ExpiresByType image/gif "access 1 month"
ExpiresByType image/png "access 1 month"
ExpiresByType text/css "access 1 month"
ExpiresByType application/pdf "access 1 month"
ExpiresByType text/x-javascript "access 1 month"
ExpiresByType application/x-shockwave-flash "access 1 month"
ExpiresByType image/x-icon "access 1 month"
ExpiresDefault "access 1 month"
</IfModule>

This is normally good for a few percentage points in speed increase, but the GZIP Compression is normally the big one.

• This reply was modified 6 years, 9 months ago by simonpedge.

I’ve already also this in the htaccess, however I have deactivated WP Fastest and installed “Autoptimize”, now your plugin works perfectly, Chrome does not give mistakes and it seems that the results of Pagespeed and other tools are the same. So it’s fine for me, your plugin is very useful to me, but I would work on this incompatibility, many use WP Fastest and this could affect SA’s success.

With caching plugins can you specify whether to exclude specific plugins for “minification”? (I seem to remember that option from when I’ve used caching plugins in the past).

Also can you specify whether to load JS/JQuery in the footer/header of the site – in SA’s case this would have to be in the header.

Yes, it was true, but I admit that I could not find the exact SA files to exclude them.
??