Question

Using PHP Zend Framework 2.0.2, I return JSON data after an AJAX call. Obviously, Internet Explorer 9 wants to download the data instead of returning it to the calling Javascript method.

Posts like this one and this one say to use Content-Type: text/plain instead of Content-Type: application/json, but how do I do this with ZF2’s JsonModel? I’m new to it…

I imagine I have to set something in the setOptions() array, but what?

public function testJsonAction()
{
   $jsonResponse = new JsonModel(array('success' => false));

   $jsonResponse->setOptions(array(
         // ** Should I put something here? What? **
   ));

   return $jsonResponse;
}

I tried using these:

  $this->getResponse()->getHeaders()->addHeaderLine('Content-Type', 'text/plain');
  $this->getResponse()->getHeaders()->addHeaderLine('Content-Disposition', 'inline; filename="textdata.json"');

but it doesn’t change the HTTP Content-Type in the response headers:

Key                   Value
Response              HTTP/1.1 200 OK
Content-Type          application/json
Server                Microsoft-IIS/7.5
X-Powered-By          PHP/5.3.13
Set-Cookie            ZDEDebuggerPresent=php,phtml,php3; path=/
Content-Disposition   inline; filename="textdata.json"
X-Powered-By          ASP.NET
Date                  Wed, 10 Oct 2012 13:19:42 GMT
Content-Length        17

Thanks for your help!

Answer 1

Because when \Zend\Mvc\MvcEvent::EVENT_RENDER event happen, the JsonStrategy will change content-type again. Source code is in

Zend\View\Strategy\JsonStrategy->injectResponse();

So in order to replace content-type into yours, you need to use EventManager to inject your custom header after JsonStrategy injected.

try below codes in your controller:

 $this->getServiceLocator()->get('Application')->getEventManager()->attach(\Zend\Mvc\MvcEvent::EVENT_RENDER, function($event){
     $event->getResponse()->getHeaders()->addHeaderLine('Content-Type', 'text/plain');
 }, -10000);