For Prerender.IO make protocol type(https or http) to be load from env settings

[zenweasel]

@amalan-shenll commented on Mon Apr 30 2018

In RC 1.11.0, in prerender.js
prerender.set("prerenderToken", process.env.PRERENDER_TOKEN);
prerender.set("host", process.env.PRERENDER_HOST);
prerender.set("protocol", "https");
this is code for prerender.io configuration.
it allows to env variable for prerenderToken and host.

issue
prerender.io always redirecting to https where our demo site support only http

reason
prerender.set("protocol", "https");

expecting change
pls change hardcoded protocol to load from env setting like
prerender.set("protocol", process.env.PRERENDER_PROTOCOL);
https://github.com/reactioncommerce/reaction/blob/7a7612033fcb044156945f6949169f8019296186/server/startup/prerender.js#L9
which may allow developers to set protocol type in env settings

Thank You