subs filter error

[Tom McLoughlin]

I'm running a TPB proxy on nginx using subs_filter to monetize the proxy
with ads,
and I keep getting this error every time someone loads a page.
subs filter header ignored, this may be a compressed response. while
reading response header from upstream, client: xx.xx.xx.xx, server: ,
request: "GET /search/sharepoint/0/7/0 HTTP/1.1", upstream:
"http://194.71.107.80:80/search/sharepoint/0/7/0", host: "tpb.rtbt.me",
referrer: "http://tpb.rtbt.me/search/sharepoint/0/99/"

My configuration is available at,
http://p.ngx.cc/d7eacc9934caa82a