Don't eagerly write response body in case of redirect

[quinnj]

No description provided.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.78%. Comparing base (e27493d) to head (44024b4).
Report is 8 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1168      +/-   ##
==========================================
+ Coverage   82.62%   82.78%   +0.15%     
==========================================
  Files          32       32              
  Lines        3051     3079      +28     
==========================================
+ Hits         2521     2549      +28     
  Misses        530      530              

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[fredrikekre]

I don't think this is sufficient, you also need to check if this redirect is to be followed or not (redirect::Bool and redirect_limit::Int arguments).

This case doesn't seem to be tested either since HTTP.get("http://localhost:8123"; redirect=false, response_stream = stderr); from the issue description gives no body at all with this PR.