Not a Joomla problem.

Have you cleared your browser cache?

What does the Javascript console of your browser say the Javascript issue is?

I've tested on several machines with different browser programs as well all giving the same problem.

The Javascript console says:

TypeError: document.formvalidator is undefined

Which EXACT save button?

Any save buttons, on any section of the admin.

Save, Save & Close, Save & New

For adding menu items or articles or anything where them buttons are shown at the top.

The close button works fine tho.

And one more question - is this using Joomla 3.4.0 Stable as released, or from the joomla-cms staging git branch ?

Stable release though cPanel Installatron plugin - I also believe my friend did an upgrade from 3.3.6 to the stable version from Joomla which resulted in the same problem.

TypeError: document.formvalidator is undefined

That means something went wrong in the update procedure, so you don’t have the correct /libraries/cms/html/behavior.php
You can copy it from github manually!

I created a fresh install using installatron plugin for cpanel that wasn't and update though.

DONT use installatron - use a manual installation, Who knows what crap cPanel or installatron have done to the source distributed files

The only thing I can say with certainty is that function formvalidator was introduced in 3.4, so something strange goes on here!

Thats very true

I'm just reconfiguring for PHP 5.4.38 and will test this then...

Thanks,

Just remembered both installs was using installatron on 2 different servers.

The only difference been the php versions

So perhaps the installatron isn't a problem let me know what you find

I cannot recreate this issue with PHP Version 5.4.38 on localhost with ampps.

I believe this is not a Joomla issue, more likely to be a server configuration or installatron installation issue.

Thanks, it's fixed now.

Care to comment how?

Copied the file (/libraries/cms/html/behavior.php) from the 1 that worked to the 1 that didn't and that fixed it

Did you backup the file you replaced? can you provide a copy for me to inspect? We might be able to provide feedback to installatron

Yes I have the file, www.mals.xyz/bak-behavior.php

Thats no use as it cannot be loaded as its a PHP file being parsed by PHP :) rename the extension please.

http://www.mals.xyz/bak-behavior.txt

Forgot about that!

That file you provided is identical to the distributed /libraries/cms/html/behavior.php in Joomla 3.4.0

Just had the same issue. The problem was because of Cloudflare. Solved by purging cloudflare-cache.

If someone is reading this with the same problem on joomla 3.4.3:
Substitute the contents of /media/system/js/validate.js with this:
https://raw.githubusercontent.com/joomla/joomla-cms/925c3fa5d512b9aff8c5b470804d282fb1b70afb/media/system/js/validate.js

@Zhigalin thanks for contributing.

I guess its more helpful to write at the forums cause this repository concerns Joomla coding and this Issue is closed since more than 2 Years.