Sorry if this is a bit off-topic, but I tried to debug this on my own and I also searched Google for quite some time but couldn't find anything yet. I'm now hoping that someone on the list can maybe help with this.
I have a Hunchentoot (pre-1.0.0) application running on a customer's server which has been online and running fine for a couple of years now. (It has seen a few updates, but none in the recent months.) The application sits behind an Apache which acts as a proxy in the usual way. Content is served to the client through https which is done by Apache, i.e. Apache talks plain http to Hunchentoot.
The application serves, amongst other things, RTF and PDF documents to the clients which are dynamically generated. Some time ago, in the first half of this year, this ceased to work for RTF documents when the client was MSIE 7. This happened after my customer's MSIE 7 browsers received an automatic software update from Microsoft. A bit later the browsers were updated again (to MSIE 8) and now PDF download is also broken. With Firefox, all is still fine. Also, if I access the website through http instead of https, downloads (RTF and PDF) still work fine.
Judging from the timing, this is pretty obviously an incompatibility between my app (and/or Hunchentoot) which was introduced due to the MSIE upgrade, but after fighting with this for quite some time I still don't have a clue what the reason is and how I could fix it. The log files don't reveal anything, they just show a normal download of the RTF/PDF document - while MSIE claims that it didn't receive anything.
Any ideas/hints?
Thanks, Edi.