Use app targets for autoprefixer as last fallback (#53)

* Use targets for autoprefixer as last fallback

* bump from ie11 to since 2015

* Lets try this

* Revert "Lets try this"

This reverts commit c936a7f.

index.js

@@ -16,17 +16,21 @@ module.exports = {
 
     this._super.included.apply(this, arguments);
 
-    var browserOptions = {};
-
     var root = this.project.root;
     var hasRCFile = fs.existsSync(`${root}/.browserslistrc`);
     var hasPkgBrowserList = !!this.project.pkg.browserslist;
 
+    var browserOptions = {};
     if (!hasRCFile && !hasPkgBrowserList) {
       var appOptions = this.app.options || {};
-      browserOptions.overrideBrowsersList = appOptions['autoprefixer'] && appOptions['autoprefixer'].overrideBrowsersList;
+      if (appOptions['autoprefixer'] && appOptions['autoprefixer'].overrideBrowsersList) {
+        browserOptions.overrideBrowsersList = appOptions['autoprefixer'].overrideBrowsersList;
+      } else if (this.project.targets) {
+        browserOptions.overrideBrowsersList = this.project.targets.browsers;
+      }
     }
 
+
     this.options = Object.assign(
       {
         enabled: true

tests/dummy/config/targets.js

@@ -10,7 +10,7 @@ const isCI = !!process.env.CI;
 const isProduction = process.env.EMBER_ENV === 'production';
 
 if (isCI || isProduction) {
-  browsers.push('ie 11');
+  browsers.push('since 2015');
 }
 
 module.exports = {