[Varnish] #1508: 301 Redirects in VCL not working properly

[Varnish]

#1508: 301 Redirects in VCL not working properly
----------------------------+--------------------
 Reporter:  mightymongoose  |       Type:  defect
   Status:  new             |   Priority:  normal
Milestone:                  |  Component:  build
  Version:  4.0.0           |   Severity:  normal
 Keywords:  301 redirect    |
----------------------------+--------------------
 {{{
 if (req.url == "/something") {
         set req.url = "/something/";
         return (synth(301, "Response"));
 }
 }}}

 So maybe I am mistaken, but the above code, while returning a 301
 response, does not redirect to the new URL. Yet it compiles and all.
 Documentation seems sparse on this subject, but I think this is a bug?

 Fiddler/chrome both just show a 301 error response with no redirect.

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Ticket URL: <https://www.varnish-cache.org/trac/ticket/1508>
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