network errors while getting bulk get with multi channel with server ssl enabled

SGW versions : 2.1.0 and up

CBS versions : Tested on 5.5.0, 6.0.1

Steps to reproduce:

1. Create a config by enabling ssl on server url without port and start server

2. Bulk create 10 docs via Sync Gateway with 1000 channels on each doc
3 Bulk create 10 docs via SDK
4 bulk get  docs via Sync Gateway API post call
 
Actual :
Caused network errors throwing errors on sync gateway error log file
 
Expected:
Should get the docs with without any errors
 
sg collect logs :
sg-collect-network-errors.zip
 
sgw-config:
https://gist.github.com/sridevi-15/9da4bf28043c1d2bafc43f5bd6d1108f
 
Note : This worked without enabling server ssl, With enabling server ssl by having port, worked with server ssl without port with single channel
 
It worked on 2.0.0, but failed on 2.1.1 and after