[TxMt] HTML output cache question

[Hans-Jörg Bibiko]

Hi,

I have some tiny problems with TM's HTML output window.

I have a tmcommand which generates HTML code on basis on a shell  
script. Fine, after invoking it I see my result.
In addition I added a button called 'Refresh' to that HTML page. I  
want to use it to start that shell script again (which writes the  
HTML code to a file) using TextMate.system and then via JavaScript  
'location.href' or 'location.replace()' to refresh the HTML output  
window.

Well, this only works if I press the button at least twice or three  
times(?).
After pressing the refresh button I had a look at the new generated  
html file and the content is correct, but TM'S HTML output window  
displays still the 'old' version.
I tried the meta tags no-cache and expire with '0'. No success. I  
also changed the actual html code a bit to be sure that TM recognizes  
it's a new document.

Is there a built-in cache for the HTML ouptut? Or can someone advice  
me? How can force TM to refresh the HTML output?

Many thanks in advance,

--Hans