V4.1 HTTP/1.0 responses without Content-Length header results in empty response

[Poul-Henning Kamp]

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In message <56680894.80904 at Berlinonline.de>, Tom Anheyer writes:

>An old perl LWP script uses HTTP/1.0 posts to an apache backend. The 
>generated backend response has no Content-Length header. Varnish 4.1.0 
>doesn't read the body (got a read error) and delivers a "Content-Length: 0"
>response back to the script. I know - http/1.0 its old and 
>should/must be avoided and the problems are gone after updating the 
>script to use http/1.1.

Please capture the varnishlog output so we can see exactly what
happens.

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