Joomla missing metadata keyword desc

Hi

There is a little problem what I didn't realized so far. I always develop on localhost, and after upload project. My Boss noticed yesterday, that the description and keywords missing from the page source. I checked on localhost and everything fine, but on web, is really missing. I deleted the whole online copy, and replace that, but the problem remain the same. I checked my other joomla installations and missing from all of them! (Different servers) So I thought it is a joomla bug, but after 1 day googling I was a little bit angry because I didn't found any answer what can help me. Only me have a kind of problem?!?

I wanted to post it by message, perhaps you meet with before, and I'f you do, maybe other peoples have the same problem.

Thanks in advance!

First of all, thank you very much for your help

On localhost working everything fine, and on the web I have exactly the same copy! (but not working)
That's why the 'head' thing will not help, and that's why this issue is very intresting...

2 idea what I will try today is upload files one-by-one. (last time I uploaded a Zip file and extratched on the server. Maybe character encoding)
If doesn't help, there is some configuration bug. I look through my server settings and joomla config file.

Thanks again.

Ok, found! The problem caused by the PHP::ZipArchive. There is a bug inside, I will report it. Anyway working everything perfectly now..