Merge pull request #4104 from PieterGit/201811_update

fix INSECURE_USE_HTTP for people with nginx or apache

app.js

@@ -14,7 +14,7 @@ function create(env, ctx) {
     var appInfo = env.name + ' ' + env.version;
     app.set('title', appInfo);
     app.enable('trust proxy'); // Allows req.secure test on heroku https connections.
-    if (!env.settings.isEnabled('insecureUseHttp')) {
+    if (!process.env.INSECURE_USE_HTTP=='true') {
         app.use((req, res, next) => {
         if (req.header('x-forwarded-proto') !== 'https')
             res.redirect(`https://${req.header('host')}${req.url}`);