New Twiddle

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'b',
  something: 'nothing',
  
  actions:{
  	setSomething(val){
      console.log('val', new Ember.Handlebars.SafeString(val.target.value));
      this.set('something', Ember.String.htmlSafe(val));
    }
  }
});

application.template.hbs

<select onblur={{action 'setSomething' value=target.value}}>

	<option value="{{{read-path appName}}}" selected=true> {{{read-path appName}}}
	</option>
</select>

<h1>{{{read-path appName}}}</h1>

{{log something}}

helpers.read-path.js

import Ember from "ember";

export default Ember.Helper.helper(function(params) {
  
  return 'Pacific Time (US & Canada)';
});

twiddle.json

{
  "version": "0.4.9",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.11/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.9/ember-template-compiler.js"
  }
}