Question

I’m using ajax-upload in a ASP.Net forms app.

I need to send a string hash which identifies the file once it is saved on the server.

I’m doing it in the ashx handler emitting a json string, but no matter what i send from the server, in the javascript i’m getting an empty object… what am I doing wrong?

This is the snippet for the on load method on the ashx
// EDITED
context.Response.ContentType = “application/json”;
context.Response.ContentEncoding = System.Text.Encoding.UTF8;
context.Response.Cache.SetCacheability(HttpCacheability.NoCache);

ProcessFile(context.Response);
context.Response.Write("{\"success\": true, \"hash\": " + _myHash + "}");

And this is the on complete

onComplete: function(id, file, responseJSON) {
    console.log(responseJSON);
}

Answer 1

These are the changes i had to do to the fileuploader.js file so it could work:

    this.log("innerHTML = " + doc.body.innerHTML);      
    // replace <pre> tags from IE Frame
    var content = doc.body.innerHTML.replace(/<pre>/gi, '').replace(/<\/pre>/gi, '');

    try {
        response = eval("(" + content + ")");
    } catch(err){
        response = {response: content};

I also changed the way it emits the response in case of JSON errors:

        var response = xhr.responseText;

        try {
            response = eval("(" + xhr.responseText + ")");
        } catch(err){
            // emit an object with the offending responseText
            response = {responseText: response};
        }