Pass options to proxyRes event.

Created by: j

I wanted to be able to use the built-in web-outgoing passes for including default headers into my final response. Only thing is that options weren't available in it. This fixes it.

I also moved the web outgoing passes function into common for code-reuse.

Created by: j

/ping @jcrugzz

Created by: j

/ping @indexzero

Created by: codecov-io

Codecov Report

No coverage uploaded for pull request base (master@a3fe02d). Click here to learn what that means. The diff coverage is 100%.

@@           Coverage Diff            @@
##             master   #1283   +/-   ##
========================================
  Coverage          ?   92.4%           
========================================
  Files             ?       6           
  Lines             ?     316           
  Branches          ?       0           
========================================
  Hits              ?     292           
  Misses            ?      24           
  Partials          ?       0

Impacted Files	Coverage Δ
lib/http-proxy/passes/web-incoming.js	98.21% <100%> (ø)
lib/http-proxy/common.js	97.29% <100%> (ø)

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restored source branch github/fork/j/options-to-proxyRes