http: should support userland Agent
https://github.com/nodejs/node/pull/10053 assert agent must be instance of http.Agent
, it make userland Agents are broken. (e.g.: https://github.com/request/tunnel-agent/blob/master/index.js#L47)
I think we should keep userland Agents still can work on the future is very important.
Checklist
-
make -j4 test
(UNIX), orvcbuild test
(Windows) passes -
tests and/or benchmarks are included -
documentation is changed or added -
commit message follows commit guidelines
Affected core subsystem(s)
http