[Varnish] #1757: If-Match header wrong format

[Varnish]

#1757: If-Match header wrong format
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 Reporter:  vko       |       Owner:
     Type:  defect    |      Status:  new
 Priority:  normal    |   Milestone:  Varnish 4.0 release
Component:  varnishd  |     Version:  4.0.3
 Severity:  normal    |  Resolution:
 Keywords:  If-Match  |
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Comment (by vko):

 Yes, backend set Etag but varnish changes it if it should be "Weak". In
 our case backend set Etag to "7". As varnish sees that Etag has to be
 modified because of "weakness" it modifies Etag in wrong format. It should
 be Etag: W/"7" but we see in the varnishlog W/7.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1757#comment:5>
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