{{content-for ‘head’}} Ember-cli

It was recently added to ember-cli based on this discussion.

Here is the relevant code from the commit:

EmberApp.prototype.contentFor = function(config, match, type) {
  var content = [];

  if (type === 'head') {
    content.push(calculateBaseTag(config));

    content.push('<meta name="' + config.modulePrefix + '/config/environment" ' +
                 'content="' + escape(JSON.stringify(config)) + '">');
  }

  content = this.project.addons.reduce(function(content, addon) {
    if (addon.contentFor) {
      return content.concat(addon.contentFor(type, config));
    }

    return content;
  }, content);

  return content.join('\n');
};