add prember

Author: mansona

config/targets.js

@@ -16,4 +16,5 @@ if (isCI || isProduction) {
 
 module.exports = {
   browsers,
+  node: 'current',
 };

package.json

@@ -56,7 +56,7 @@
     "ember-cli-deploy-gzip": "^1.0.0",
     "ember-cli-deprecation-workflow": "^1.0.1",
     "ember-cli-document-title-northm": "^1.0.3",
-    "ember-cli-fastboot": "^2.0.0",
+    "ember-cli-fastboot": "^3.3.2",
     "ember-cli-htmlbars": "^5.7.1",
     "ember-cli-inject-live-reload": "^2.0.2",
     "ember-cli-meta-tags": "^5.1.0",
@@ -109,6 +109,7 @@
     "minimist": "^1.2.6",
     "normalize.css": "^8.0.1",
     "npm-run-all": "^4.1.5",
+    "prember": "^1.1.1",
     "prettier": "^2.2.1",
     "qunit": "^2.16.0",
     "qunit-dom": "^1.6.0",