Content-Length missing in HTTP request

i've run into a very similar issue - our cdn will not cache content without a content-length header. this is an issue with dynamically-generated content, but many of our tomcat apps will not include the header even if it's a static page.

 

 

to my knowledge the best way to do this is to unchunk first, collect payload, add header, then send it on it's way. it seems like unchunking and converting to http 1.0 would be a performance hit on large files but i haven't tested it yet.