[Varnish] #940: ETag for gzip'd variant identical to ETag of ungzipped variant.

[Varnish]

#940: ETag for gzip'd variant identical to ETag of ungzipped variant.
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 Reporter:  david  |        Type:  defect  
   Status:  new    |    Priority:  high    
Milestone:         |   Component:  build   
  Version:  3.0.0  |    Severity:  critical
 Keywords:         |  
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 Hello,

 With the introduction of gzip support in Varnish 3, we have run into a
 problem where ETags are incorrectly duplicated between two different
 objects. I'm not sure I need to provide much explanation here except to
 remind the devs that ETags are unique, and need to be different for each
 variant of a page (including a variant caused by gzip). You can read more
 about it in an old bug report here:
 https://issues.apache.org/bugzilla/show_bug.cgi?id=39727

 The only workaround I could come up with was to revert to storing two
 copies of a page in cache (2.1.5 behavior) by turning off Varnish's gzip
 support, and putting the Accept-Encoding normalization code back into
 vcl_recv.

 If there is another workaround, please let me know.

 Regards,
 -david

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Ticket URL: <http://www.varnish-cache.org/trac/ticket/940>
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