[Varnish] #1594: Make server.* vars available everywhere

[Varnish]

#1594: Make server.* vars available everywhere
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 Reporter:  tmagnien                  |       Owner:
     Type:  enhancement               |      Status:  closed
 Priority:  normal                    |   Milestone:
Component:  build                     |     Version:  4.0.1
 Severity:  normal                    |  Resolution:  invalid
 Keywords:  server vars availability  |
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Changes (by phk):

 * status:  new => closed
 * resolution:   => invalid


Comment:

 That is not safe.

 For instance we lack a struct req in a background fetch.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1594#comment:1>
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