successfully upgraded webpack (#306)

* successfully upgraded webpack

* tweaking node6 job

* add node_modules to $PATH

.circleci/config.yml

@@ -59,7 +59,6 @@ jobs:
       - restore_cache:
           key: npm-cache-{{ checksum "package-lock.json" }}
       - run: npm rebuild
-      - run: npm install babel-polyfill
       - run: make test-node6
 
   chrome:
@@ -122,6 +121,7 @@ workflows:
           requires:
             - nodefetch1
             - nodefetch2
+            - node6
             - chrome
            # - firefox
             - lint

Makefile

@@ -1,3 +1,5 @@
+export PATH := $(PATH):./node_modules/.bin
+
 .PHONY: test
 
 test-dev:
@@ -12,8 +14,7 @@ test-firefox:
 test-unit:
 	./node_modules/.bin/mocha test/server.js
 
-test-node6:
-	npm run babelify
+test-node6: transpile
 	node test/node6.js
 
 lint:
@@ -25,3 +26,9 @@ coverage-report:
 
 local-coverage:
 	./node_modules/.bin/istanbul cover node_modules/.bin/_mocha 'test/server.js'
+
+transpile:
+	babel src --out-dir es5
+
+bundle:
+	webpack --mode development --output-library fetchMock --entry ./es5/client.js --output-filename ./es5/client-bundle.js

karma.conf.js

@@ -11,6 +11,7 @@ module.exports = karma => karma.set({
 		'test/**/*.js': ['webpack']
 	},
 	webpack: {
+		mode: 'development',
 		devtool: 'source-map',
 		module: {
 			rules: [