HTTP Compression

[Tom Scavo]

I've asked this before on the dev list but I wanted to ask here as
well: Do the Shibboleth HTTP metadata providers support HTTP
Compression by default or is some special configuration required?
Specifically, do the metadata providers send the following HTTP
request header:

Accept-Encoding: gzip

or at least a header that includes gzip. I'm not sure how to test that?

Thanks in advance,

Tom