Yeah, it would be nice if one could persuade yum to do that. But, as wrote at http://wiki.linux.duke.edu/YumFaq , question 5: 
Q. 5: I get an "Errno -1 Header is not complete." error from yum - what the heck is going on?
A. It's probably a proxy somewhere between you and the repository. You may not think that a proxy is in the way even though it really is.

(...)

The solutions to this problem are:

- Get your proxy software/firmware updated so that it properly implements HTTP 1.1
- Use an FTP repository, where byte ranges are more commonly supported by the proxy
- Create a local mirror with rsync and then point your yum.conf to that local mirror
- Don't use yum

In reply to Re^2: Is wise to use HTTP::Proxy to enforce correct Content-Range responses? by motobói
in thread Is wise to use HTTP::Proxy to enforce correct Content-Range responses? by motobói

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