fix: correctly import najax for FastBoot

.eslintrc.js

@@ -16,6 +16,9 @@ module.exports = {
   env: {
     browser: true
   },
+  globals: {
+    FastBoot: true
+  },
   rules: {
     'prettier/prettier': 'error',
 

addon/-private/utils/is-fastboot.js

@@ -1,3 +1,3 @@
-/* global FastBoot */
 const isFastBoot = typeof FastBoot !== 'undefined';
+
 export default isFastBoot;

addon/utils/ajax.js

@@ -1,6 +1,6 @@
-/* global najax */
 import $ from 'jquery';
-
 import isFastBoot from 'ember-ajax/-private/utils/is-fastboot';
 
-export default (isFastBoot ? najax : $.ajax);
+const ajax = isFastBoot ? FastBoot.require('najax') : $.ajax;
+
+export default ajax;

package.json

@@ -34,7 +34,8 @@
     ]
   },
   "dependencies": {
-    "ember-cli-babel": "^6.14.1"
+    "ember-cli-babel": "^6.14.1",
+    "najax": "^1.0.3"
   },
   "devDependencies": {
     "@commitlint/cli": "^7.0.0",
@@ -80,7 +81,10 @@
     "node": "^4.5 || 6.* || >= 7.*"
   },
   "ember-addon": {
-    "configPath": "tests/dummy/config"
+    "configPath": "tests/dummy/config",
+    "fastbootDependencies": [
+      "najax"
+    ]
   },
   "greenkeeper": {
     "ignore": [

yarn.lock

@@ -4708,6 +4708,10 @@ jest-validate@^23.0.0:
     leven "^2.1.0"
     pretty-format "^23.0.1"
 
+jquery-deferred@^0.3.0:
+  version "0.3.1"
+  resolved "https://registry.yarnpkg.com/jquery-deferred/-/jquery-deferred-0.3.1.tgz#596eca1caaff54f61b110962b23cafea74c35355"
+
 jquery@^3.3.1:
   version "3.3.1"
   resolved "https://registry.yarnpkg.com/jquery/-/jquery-3.3.1.tgz#958ce29e81c9790f31be7792df5d4d95fc57fbca"
@@ -5902,6 +5906,14 @@ mute-stream@0.0.7, mute-stream@~0.0.4:
   version "0.0.7"
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
 
+najax@^1.0.3:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/najax/-/najax-1.0.3.tgz#11145f4d910446ea661d8ab7fcef53f6ad164ae5"
+  dependencies:
+    jquery-deferred "^0.3.0"
+    lodash.defaultsdeep "^4.6.0"
+    qs "^6.2.0"
+
 nan@^2.3.0:
   version "2.10.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-2.10.0.tgz#96d0cd610ebd58d4b4de9cc0c6828cda99c7548f"
@@ -6675,6 +6687,10 @@ qs@6.5.1, qs@^6.4.0, qs@~6.5.1:
   version "6.5.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.1.tgz#349cdf6eef89ec45c12d7d5eb3fc0c870343a6d8"
 
+qs@^6.2.0:
+  version "6.5.2"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.5.2.tgz#cb3ae806e8740444584ef154ce8ee98d403f3e36"
+
 qs@~5.2.0:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/qs/-/qs-5.2.1.tgz#801fee030e0b9450d6385adc48a4cc55b44aedfc"