[edit] Current problem with website

When browsing previously visited pages the browser asks to save the page.

Observations:

servers gives back "HTTP/0.9 200 OK" - no headers at all - http payload is there
based on which browser, chooses to save the page
does not occurs when you don't send 'accept-encoding' header in the requests
happens on all platforms/browsers
happens on 0x20 and hsbxl website

Stuff tried:

Stuff to try:

disable redirect to ssl to check if also occurs with no ssl config.
- please test, I can not reproduce anymore for the moment

[edit] Misc