old_contents: var path = require('path');
  
  exports.config = {
    //directConnect: true,
  
    seleniumAddress: 'http://localhost:4444/wd/hub',
  
    // Spec patterns are relative to the location of this config.
    //specs: [
    //  'example_spec.js'
    //],
  
    capabilities: {
      'browserName': 'chrome',
      'chromeOptions': {
        'args': ['--load-extension=' + path.join(__dirname, '../extension')]
      }
    },
  
    onPrepare: function() {
      $PREPARE
    }
  };
  
new_contents: var path = require('path');
  
  exports.config = {
    //directConnect: true,
  
    seleniumAddress: 'http://localhost:4444/wd/hub',
  
    // Spec patterns are relative to the location of this config.
    //specs: [
    //  'example_spec.js'
    //],
  
    capabilities: {
      browserName: 'chrome',
      chromeOptions: {
        args: [
          $CHROME_OPTIONS
        ]
      }
    },
  
    onPrepare: function() {
      $PREPARE
    }
  };
  
subject: Add variable for chrome options