Possible for Synapse to handle non-xml responses ?

[lharding]

Is it possible for synapse to handle non-xml responses to messages? That is, 
suppose I have a <default> endpoint, and it gets a message bound for a normal 
webserver:

To Address: http://www.example.com/foo
Content of foo:

Hello, world!
^D

Endpoint: 
        <default format="get" trace="enable"/>

When the content of foo is valid xml, it gets returned from the endpoint, 
albeit with a content-type of application/xml regardless of the content-type 
set by www.example.com.
Non-XML content however, throws this exception:

<Exception>Unexpected response received : 
com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character 'H' (code 
47) in prolog; expected '&lt;'
 at [row,col {unknown-source}]: [1,1]</Exception>

...which I take to mean that synapse (or axis? This seems to happen before the 
message gets to any Synapse code) was expecting an XML document rather than 
some other content type. Is there a way around this?

Thanks,

-Leander