title: How to use Golang's go mod dependency management behind proxy?
body: <p>I am trying to set up a project with a gonum dependency and ran into the problem that we have a corporate proxy that blocks many destinations in the internet. </p>
  
  <p>github.com is available over https. 
  gonum.org is not. </p>
  
  <p>The gonum repository is hosted on github. Gonum.org forwards to it in some way, as the repo that is checked out in gonum.org/v1/gonum is just a github clone. Using the go mod tooling by default will fetch all code, which fails since the github urls are aliased to gonum.org which the proxy will block.</p>
  
  <p>Is there a way to download gonum via github and use symlinks/copying around to still be able to use it? </p>