Can I set my own response headers besides cache and content-type for an <apex:page> or any other pages on the force.com platform?
I'd be interested in setting my own headers in general but in this instance I'm trying to proxy a download of a JSON document through Apex with some modifications before it's passed off to the client.
I can return the text just fine and force it to download by modifying the Content-Type but without the Content-Disposition header, I can't set the filename which is a non-starter in my case. If I can't get Apex / VF to do this I'll have to setup a proxy outside of Salesforce.
I've been pouring over the docs and forums but haven't been able to determine if there's a way to set the http response code on a call to a visualforce page.
For example, I'd like to return 500 if I encounter an error in my Apex code and 200 if everything works.
