Error calling action through getJSON in Asp.Net MVC

Question

I am calling a controller action through $.getJSON() method but i dont know why the action is not calling.

$.getJSON("/Home/Index", { ID:id }, function(){
});

But when i change this to

$.getJSON("/Home/Index/s", { ID:id }, function(){
});

it works fine. I have check my routing and i did not find any problem there. What can be the issue?

routes.MapRoute( "GetPostTypeChild", "Home/Index", new { controller = "Home", action = "Index" } ); — Fraz Sundal
– Fraz Sundal, Commented Feb 28, 2011 at 7:22

LeftyX · Accepted Answer · 2011-02-27 15:31:57Z

1

That's really really weird.
I've tried your script and the only problem I can see is the fact that ASP.NET MVC2 can't return json data when the call is a GET. It's been blocked for security reasons.

If you try to trace your call with Fiddler, you might notice that the response is something like this:

"This request has been blocked because sensitive information could be disclosed to third party web sites when this is used in a GET request. To allow GET requests, set JsonRequestBehavior to AllowGet."

If you want to enable the return data, anyway, you can force it:

return (Json(<your object>, JsonRequestBehavior.AllowGet));

or do a POST. You can find more infos here.

answered Feb 27, 2011 at 15:31

LeftyX

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3 Comments

Fraz Sundal Over a year ago

Yes i face that issue but my problem is that the Index action is not calling.

sajoshi Over a year ago

Even with AllowGet, I found that it is called only one.. To overcome, I used [OutputCache(NoStore = true, Duration = 0, VaryByParam = "None")]

LeftyX Over a year ago

@Fraz Sundal: it seems to me that your problem might be with the routing. Is this the only route defined? routes.MapRoute( "GetPostTypeChild", "Home/Index", new { controller = "Home", action = "Index" } );

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