fix: 🐛 redirect status code

[denghongcai]

redirect response event should not be -1

[codecov]

Codecov Report

Merging #363 (cb65d19) into master (27dc858) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #363   +/-   ##
=======================================
  Coverage   93.17%   93.17%           
=======================================
  Files           6        6           
  Lines         820      820           
  Branches      221      223    +2     
=======================================
  Hits          764      764           
  Misses         56       56           

Impacted Files	Coverage Δ
lib/urllib.js	96.22% <100.00%> (ø)

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