Don't get it working... about angular-file-saver

[merrillmatt]

@eugenevk, it looks like the issue is related to mixing "attach to $scope" style with controller as syntax. Either remove the controller as syntax from your view or modify your controller so that it properly implements the controller as syntax.

[alferov]

@eugenevk, @merrillmatt is right. In your case, the view template should look like

<div class="wrapper" ng-controller="FileSaveCtrl">
  <textarea
    ng-model="val.text"
    name="textarea" rows="5" cols="20">
      Hey ho let's go!
  </textarea>
  <a href="" class="btn btn-dark btn-small" ng-click="download(val.text)">
    Download
  </a>
</div>

P.S: There is no need to include angular-file-saver.js if angular-file-saver.bundle.js is included already.
angular-file-saver.bundle.js = angular-file-saver.js + polyfills (Blob.js, FileSaver.js)