Hello again,
i was able to solve the problem. I found the following solution on Stackoverflow.com :
Actually, that is because IrisCouch is using your User-Agent to provide Mobile Futon, since it thinks that's the only code you'll ever need.
The IrisCouch team have been advised of this ill decision and are working on a solution. The real workaround is either -
copy those files locally (like you did), but then you'd waste your own diskspace and loose any auto-updates they are doing
the suggested solution from CouchDB is to actually go into your Configuration page and change the httpd/mobile_futon property to FALSE
Hope this helps, please mark as Answered once you try it (works for me ;-)
Now my app is running fine.
regards
Thomas