fix bug (when use reverse proxy with TLS, "HttpServletResponse.sendRe…

[wkcaeser]

fix bug (when use reverse proxy with TLS, "HttpServletResponse.sendRedirect" will redirect to http rather than https)

[codecov-io]

Codecov Report

Merging #1967 into master will increase coverage by <.01%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master    #1967      +/-   ##
============================================
+ Coverage     50.17%   50.17%   +<.01%     
- Complexity     1978     1979       +1     
============================================
  Files           400      400              
  Lines         12342    12342              
  Branches       1272     1272              
============================================
+ Hits           6192     6193       +1     
  Misses         5691     5691              
+ Partials        459      458       -1

Impacted Files	Coverage Δ	Complexity Δ
.../apollo/internals/RemoteConfigLongPollService.java	80.36% <0%> (+0.61%)	28% <0%> (+1%)	⬆️

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[coveralls]

Coverage remained the same at 53.889% when pulling dbdd750 on wkcaeser:master into 81a1bce on ctripcorp:master.

[nobodyiam]

LGTM