Minify CSS Error

There seems to be a problem with the Minify feature on blogs running WordPress 3.9.2.

I am using 3.8.1.

It was working great until two days ago. I made no changes to the website.

I tried changing permissions but still no luck.

I tried reinstalling the plugin and the same issues.

Any help would be great.

I am having the same problem. My site was working fine a few hours ago. I haven’t made any changes at all. Please help!

I’m using WP 3.9.2

Brent for now try to change Minify mode: from automatic to manual. That will get your website working.

Just wondering why this has happened out of blue for me…

It was working fine for last 3 months.

I tried installing older version of the plugin.. Same issue.

Would love to get this working again. My website was so quick with minify option set to automatic

Thanks, but that didn’t solve the issue for me ??

Since I haven’t been able to find out the cause of the issues I decided to remove W3 Total Cache.

I am now using WP Super Cache and Autoptimize to minify my JS and CSS files.

Using these two my site seems to be responsive.

I would like to use W3 Total Cache in future.

Same error here for minified css files.

HTTP/1.0 400 Bad Request

This is only happenning on one of my blogs though. I have a few other sites running WT3 and minified css files are working fine there. Not sure what the difference is.

I’m also seeing this happen for certain minified js files as well.

More info:

I’m looking at the files under cache/minify and it looks like minified css files aren’t being generated at all. Some minifed js files are created successfully, but not all, and only if I have cdn disabled.

After unchecking “Disable minify automatic file name length test” I now get this error:

Recently an error occurred while creating the CSS / JS minify cache: No sources to serve.

Also, I have to correct myself, this problem appears to be happening on all my wp sites now. The others only seemed fine because I hadn’t refreshed the cache.

I have the exact same issues as you. I also haven’t made any changes.

I didn’t even have CDN enabled.

I wonder if its silent update to the plugin or wordpress or cpanel that is causing this.

Yeah, it’s very strange. Seems to have happened out of nowhere.

Is anyone else with this issue on a LiteSpeed server? I just looked into a WP site I have hosted on an Apache server and WT3 minify seemed to work fine. But all my sites hosted on LiteSpeed are experiencing this minify issue.

My sites are on LiteSpeed

Yes sir. My server is on LightSpeed too. Looks like we have identified the where the problem is. We just have to work out how we fix it.

I tried permissions but maybe 777 php file that generates the minified files..

I submitted a bug report for this issue via the support tab in the plugin itself. The support person replied:

This should be fixed in the next release, thanks for bringing it to our attention.

He didn’t give me any more info than that though. Others with this problem might want to submit reports too if they haven’t yet. Maybe it will help.

I had to remove the plugin. Is there another way I could submit the bug report?

I am sure someone with good knowledge could identify the cause of the problem.