Not sure if helps, but I had similar experience with nginx - what happened to me is that proxy did not understand chunked encoding, and double-encoded the content so browsers treated original chunk markers as content after decoding proxy's markers.
On Wednesday, June 2, 2010, Nick Gearls wrote: > Hello, > > Although I can see a lot of problems related to chunked encoding, it is not > clear to me if it is correctly supported in latests versions. > During tests with 2.2.4, I found the following problem: when the back-end > sends chunked encoding to an Apache reverse proxy (see below for loaded > modules), it seems that Apache does not understands it is chunked encoded > (although the header is present), and sends the complete packet with the > chunks length as part of the (non chunked encoded) message. > > When suppressing the chunked encoding (by forcing HTTP 1.0 with "setenv > force-proxy-request-1.0"), it works smoothly. > Is this supposed to be one of the known bugs - I don't see corresponding one > (no mod_filter, mod_deflate, etc.)? > > Details: > --------- Answer from the back-end --------- > HTTP/1.1 200 OK > Date: Tue, 01 Jun 2010 12:01:23 GMT > Server: ***back-end****** > Content-Type: text/html; charset=utf-8 > Content-Length: 28903 > Transfer-Encoding: chunked > Connection: close > > 70d9 > > > > > <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" > "http://www.w3.org/TR/html4/loose.dtd";> > … > > > > 0 > --------- Answer from the reverse proxy --------- > HTTP/1.1 200 OK > Date: Tue, 01 Jun 2010 12:01:23 GMT > Server: ***front-end****** > Content-Type: text/html; charset=utf-8 > Vary: Accept-Encoding,User-Agent > Content-Length: 28903 > Connection: close > > 70d9 > > > > > <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" > "http://www.w3.org/TR/html4/loose.dtd";> > … > > > > 0 > --------- > > Relevant loaded modules: > > * mod_rewrite > * mod_substitute > * mod_include > * mod_proxy > * mod_proxy_http > > Regards, > > Nick > > -- Thank you, Sergey -- Sergey Chernyshev http://www.sergeychernyshev.com/
