Please Wait ... Saving ... - LOOP!

Hi,

I've a really strange problem: it's not possible to save the ressource after pasting or typing a certain kind of text. Pasting other text or content works but not this particular one though it's only plain text. And yes, it is REALLY plain text.

GENERAL:
System: MODX Revo 2.2.6 pl
PHP Version: 5.3.18
Server: Linux Apache
Error message: Please Wait ... Saving ... (endless saving)
------------------------

OTHER:
Language of the text: english (no special characters)
TinyMCE: not installed (doesn't work with TinyMCE either)
Cache: cleared
log files: inconspicuous
Used browser: Chrome, Safari, Firefox
Saving other ressources with other content: ok
Saving the same resource with other content: ok
Creating a new ressource to save the particular text in it: didn't work
Saving the text on another ressource: didn't work

I suppose that this could be a problem with the server settings (though I've absolutely no idea which kind of problem). It's possible to save this particular text in other Revo installations hosted by other hosters. Today, I installed MODX Revo on my own web space. I have the same hoster like the customer. Result: I cannot save this particular text ...

Does anyone have an idea what kind of problem this could be? Is there a server setting which could cause this problem or is it a MODX bug?

Thanks!!!

Using Firefox get HttpFox and see if any 500 (or other) errors are coming up. Also use the error console (Shift+Control+J) to check for any JavaScript errors.

There might be a 'HttpFox' equivalent for Chrome but I'm not aware of it.

This is problem with mod_security blocking the POST of certain words.

Thanks for your answers! Yes, it's a problem with mod_rewrite. I don't know how it comes but my posting has two URLs. Sorry for the double posting! (Maybe someone can delete this thread)

Here is the thread with the solution: https://forums.modx.com/thread/81684/please-wait-saving---loop#dis-post-450632