Does data-pipelining in proxied content require oauth to be configured?

[daviesd]

I have a developer trying to use proxied content.  Their gadget looks as
follows:

    <Content 
     href="http://localhost/some.php";
     type="html" 
     authz="signed"
     xmlns:os="http://ns.opensocial.org/2008/markup";>
           <os:ViewerRequest key="viewer" />
    </Content>

We keep getting a 403 back from the server

WARNING: The following fatal error occurred when OAuth was fetching content:
 Unable to retrieve consumer key.
Apr 26, 2012 6:04:38 PM org.apache.shindig.gadgets.render.Renderer render
INFO: The gadget at http://dl.dropbox.com/u/xxxxx/gadgets/karen_proxy.xml
did not render. The following error occurred: Unable to reach remote host.
HTTP status 403.

If we set authz to none then we get ³Must sign by viewer to request viewer².

So I¹m assuming you must turn authz on for data-pipelining to work.  Does
this mean I need to configure oauth in shindig.properties?  I don¹t
currently and this is probably my problem, but just checking.

doug