IE tries to download json response while submitting jQuery multipart form data containing file
You can simply return JSON from the controller as "text/html" and then parse it on the client side using JQuery.parseJSON().
Controller:
return this.Json( new { prop1 = 5, prop2 = 10 }, "text/html");Client side:
jsonResponse = $.parseJSON(response);if(jsonResponse.prop1==5) { ...}This solution has been working for me.
I have not found a direct solution to this, but I eventually implemented the following workaround: I used dataType: "text" in my ajax settings and then returned plaintext from controller, separating values with ; and parsing them on the client side. That way IE and Forefox stopped trying to download a response.
I did not find any other way to prevent said behavior other then to return plaintext. I tried returning JSON as plaintext and then parsing it with $.parseJSON, but it didn't work due to some js errors.
Just send response with 'Content-Type', 'text/html' header.