IE Sending OPTIONS Request for File Downloads

On my site I have a very basic setup: an 'a href' tag that just points to a file. Nothing fancy:

<a href="/path/to/my/file.doc">File</a>

No fancy javascript, nothing. Some users who are using old IE versions less than 8 have been having spotty problems downloading different files like this. What I've been able to trace it back to is that IE will send an OPTIONS request for the file (and even then not all the time). Since I'm not running a Webdav server, I had mod_security set at the default to reject those non-normal header, so it returns a 500 response.

IE8, Firefox, and Chrome do not do an OPTIONS request and therefore never have a problem.

Do I need to set something up differently on my end 开发者_开发百科to IE stop sending an OPTIONS request and just a standard GET request?

Running:

• CentOS 5.3
• Apache 2.2.8
• mod_security 2.5.0

At some point I found an article that said that IE will send the OPTIONS request on direct file downloads as just part of how it functions.

Why 500 SERVER ERROR? Why not 405 Method Not Allowed? (See RFC2616 10.4.3)