[Varnish] #267: Fix ESI If-Modified-Since bug

[Varnish]

#267: Fix ESI If-Modified-Since bug
----------------------+-----------------------------------------------------
 Reporter:  sky       |       Owner:  phk  
     Type:  defect    |      Status:  new  
 Priority:  normal    |   Milestone:       
Component:  varnishd  |     Version:  trunk
 Severity:  normal    |    Keywords:       
----------------------+-----------------------------------------------------
 We need to unset the If-Modified-Since header, otherwise the underlying
 ESI object might not be rendered.


 {{{
 Index: bin/varnishd/cache_vrt_esi.c
 ===================================================================
 --- bin/varnishd/cache_vrt_esi.c        (revision 2877)
 +++ bin/varnishd/cache_vrt_esi.c        (working copy)
 @@ -777,6 +785,7 @@
                 http_SetH(sp->http, HTTP_HDR_URL, eb->include.b);
                 if (eb->host.b != NULL)  {
                         http_Unset(sp->http, H_Host);
 +                       http_Unset(sp->http, H_If_Modified_Since);
                         http_SetHeader(sp->wrk, sp->fd, sp->http,
 eb->host.b);
                 }
                 sp->step = STP_RECV;
 }}}

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Ticket URL: <http://varnish.projects.linpro.no/ticket/267>
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