Inline vendor and application Javascript and CSS in the index.html file.

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ember-cli-all-in-one is a small Ember addon that replaces the following tags in index.html

<link rel="stylesheet" href="{{rootURL}}assets/vendor.css">
<link rel="stylesheet" href="{{rootURL}}assets/dummy.css">

<!-- ... -->

<script src="{{rootURL}}assets/vendor.js"></script>
<script src="{{rootURL}}assets/dummy.js"></script>

with <style> and <script> tags that directly include the contents of the file above.

This reduces networks requests and the above-the-fold problem often reported by Google PageSpeed Insights.

Also, when no images are used (or replacing them with inline SVG or data: images) this addon reduces a entire Ember application to a single HTML file.


ember install ember-cli-all-in-one


In the ember-cli-build.js file, please define a new allInOne section.

This section can contain one of the following sub-section:

  • css: Settings applied to assets/vendor.css and assets/$APP.css
  • js: Settings applied to assets/vendor.js and assets/$APP.js

Each settings can contain any of the following options:

  • enabled: If to include this kind of files directly inside the index.html file. The default value is true.
  • preserveOriginal: If not to delete the included file in the dist folder. The default value is false.
  • trackReplacements: If add data-original-source="$PATH" to the replacement <style> and <script> tags. The default value is true if not in production environment.

Contributing to ember-cli-all-in-one

  • Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
  • Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
  • Fork the project.
  • Start a feature/bugfix branch.
  • Commit and push until you are happy with your contribution.
  • Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.


Copyright (C) 2016 and above Shogun shogun@cowtech.it.

Licensed under the MIT license, which can be found at http://opensource.org/licenses/MIT.

Made by a proud Italian!