用于JSONP响应的Laravel JavaScript File响应

I'd like to generate a JavaScript file for JSONP data exchange. All fine, but I need / want to set the header as :

header("Content-Type: text/javascript");

or

header("Content-Type: application/javascript");

Is this possible in a response from a controller in Laravel 4, or do I need to create a view and set the header with PHP?

I'd like to output something like:

var obj = JSON.parse('{"item1":"value1","item2":"value2"}');

// then do whatever with the object
 $('#somediv').html(obj.item1);

Thanks for your help in advance

Okay, looks like I have to answer my question myself :-). Thanks to @terrylow for trying though.

Here is the way to change the header of my response using my function in my controller

public function javascriptResponse(){
    $statusCode = 200;
    $content = "var obj = JSON.parse('{\"item1\":\"value1\",\"item2\":\"value2\",\"some\":\"whoaevaNew\"}');"; 
    $response = Response::make($content, $statusCode);
    $response->header('Content-Type', 'application/javascript');
    return $response;
}

variable content can also be filled with a view:

 $content = View::make('tools/jsonp_resonse'); // also possible with view

Hope that will help someone...

you can use this method provided by laravel

return Response::jsonp($callback, $data,$status, $header);