Cross Domain ASP. Net Web API Calling Using JQuery AJAXIf you have created a Restful API using the ASP. NET Web API and if your API is in one domain and the UI is in another domain then you might get errors due to cross domain issues. OPTIONS http localhost 5. Not Found. XMLHttp. Request cannot load http localhost 5. No Access Control Allow Origin header is present on the requested resource. Jquery Ajax Cross-Domain File Upload' title='Jquery Ajax Cross-Domain File Upload' />Origin http localhost 5. The response had HTTP status code 4. In other words you cannot make a call to the Web. API via your front end that is hosted on a different domain. So you must use JSONP to get data using AJAX, not by JSON. To achieve this goal you need to install Jsonp. Media. Type. Formatter. For installing the Jsonp. Media. Type. Formatter in Visual Studio, search Jsonp. John.Harvey/CSRF-sample-app-secret-form-success-cors.png' alt='Jquery Ajax Cross-Domain File Upload' title='Jquery Ajax Cross-Domain File Upload' />The Road Map to JavaScript Attainment You will learn just about the full JavaScript language and jQuery and some HTML5 in 6 to 8 weeks, if you complete this entire. Html5 File Upload with Progress Html5 finally solves an age old problem of being able to upload files while also showing the upload progress. Today mo. The official documentation source for the most advanced editor designed to simplify website creation. Create an app using the NAPA Tool in SharePoint 2013 Online. CrossDomain Requests. Get the file versions using the REST API. Endpoint URI. httpsc986. I need to use Upload Collection ControlOn browse button click just need to select the required files and On Upload button click need to upload all files on. Hi, Are you able to convert a Java Script code to jpeg file I have 6 image banners from the forex company that I am an affiliate with. I have the Landing page URL. Media. Type. Formatter in Manage Nu. Get Packages and install it. Then you can see in your project references that a new DLL was added. Web. Api. Contrib. N0jtuXQE/Uz4_wR_mspI/AAAAAAAABXI/eqYzQ1n8D2s/s1600/access-control-allow-origin.png' alt='Jquery Ajax Cross-Domain File Upload' title='Jquery Ajax Cross-Domain File Upload' />Formatting. Jsonp. To use this DLL you need to change in the ApplicationStart method in the Global. Web. Api. Contrib. Formatting. Jsonp    using System. Net. Http. Formatting     Global. Configuration. Configuration. Formatters. Clear   Global. Configuration. Configuration. Formatters. Addnew Jsonp. Media. Type. Formatternew Json. Media. Type. Formatter   Or you can use Json. Media. Type. Formatter code, you need to write this code in the AppStart folder and register this code in ApplicationStart. Json. Media. Type. Formatter code using System    using System. Collections. Generic    using System. Linq    using System. Web    using System. Net. Http. Formatting    using System. Net. Http. Headers    using System. Net. Http    using Newtonsoft. Json. Converters    using System. IO    using System. Net    using System. Threading. Tasks        namespace Web. API                              public class Jsonp. Formatter  Json. Media. Type. Formatter                        public Jsonp. Formatter                            Supported. Media. Types. Addnew Media. Type. Header. Valueapplicationjson                Supported. Media. Types. Addnew Media. Type. Header. Valuetextjavascript                    Jsonp. Parameter. Name  callback                                                                    public string Jsonp. Parameter. Name  get set                                                         private string Jsonp. Callback. Function                    public override bool Can. Write. TypeType type                            return true                                                                                                  public override Media. Type. Formatter Get. Windows 2000 Professional 1 2Cpu. Per. Request. Formatter. InstanceType type, Http. Request. Message request, Media. Type. Header. Value media. Type                            var formatter  new Jsonp. Formatter                                    Jsonp. How To Attach Js File In Asp.Net. Callback. Function  Get. Json. Callback. Functionrequest                                                                                  formatter. Serializer. Settings. Converters. Addnew String. Enum. Converter                formatter. Serializer. Settings. Formatting  Newtonsoft. Json. Formatting. Indented                    return formatter                                public override Task Write. To. Stream. AsyncType type, object value,                                            Stream stream,                                            Http. Content content,                                            Transport. Context transport. Context                            if string. Is. Null. Or. EmptyJsonp. Callback. Function                    return base. Write. To. Stream. Asynctype, value, stream, content, transport. Context                    Stream. Writer writer  null                                  try                                    writer  new Stream. Writerstream                    writer. WriteJsonp. Callback. Function                      writer. Flush                                catch Exception ex                                    try                                            if writer  null                            writer. Dispose                                        catch                          var tcs  new Task. Completion. Sourcelt object                     tcs. Set. Exceptionex                    return tcs. Task                                    return base. Write. To. Stream. Asynctype, value, stream, content, transport. Context                           . Continue. Withinner. Task                                                           if inner. Task. Status  Task. Status. Ran. To. Completion                                                                  writer. Write                                   writer. Flush                                                              writer. Dispose                               return inner. Task                           , Task. Continuation. Options. Execute. Synchronously                                . Unwrap                                                                              private string Get. Json. Callback. FunctionHttp. Request. Message request                            if request. Method  Http. Method. Google Provider Ui Apk on this page. Get                    return null                    var query  Http. Utility. Parse. Query. Stringrequest. Request. Uri. Query                var query. Val  querythis. Jsonp. Parameter. Name                    if string. Is. Null. Or. Emptyquery. Val                    return null                    return query. Val                          For using this code you need to make the following change in the ApplicationStart method in the Global. Global. Configuration. Configuration. Formatters. Insert0, new Web. API. Jsonp. Formatter   j. Query code to use the Web API lt script srchttp ajax. Get. Information             var api. Service. Path  http localhost 5. Query. ajax                cross. Domain true,                data. Type jsonp,                url api. Service. Path  testGet. Information,                async false,                context document. Done                        lt script  Thanks. How to get Jquery Ajax Readystates. Have a look at the documentation of. You have the possibility to pass different callbacks maybe not for evert ready state but it is enough for an indicator before. Sendjq. XHR, settingsFunction. A pre request callback function that can be used to modify the jq. XHR in j. Query 1. XMLHTTPRequest object before it is sent. Use this to set custom headers, etc. The jq. XHR and settings maps are passed as arguments. This is an Ajax Event. Returning false in the before. Send function will cancel the request. As of j. Query 1. Send option will be called regardless of the type of request. Status, jq. XHRFunction, Array. A function to be called if the request succeeds. The function gets passed three arguments The data returned from the server, formatted according to the data. Type parameter a string describing the status and the jq. XHR in j. Query 1. XMLHttp. Request object. As of j. Query 1. Each function will be called in turn. This is an Ajax Event. XHR, text. Status, error. ThrownFunction. A function to be called if the request fails. The function receives three arguments The jq. XHR in j. Query 1. XMLHttp. Request object, a string describing the type of error that occurred and an optional exception object, if one occurred. Possible values for the second argument besides null are timeout, error, abort, and parsererror. This is an Ajax Event. As of j. Query 1. Each function will be called in turn. Note This handler is not called for cross domain script and JSONP requests. XHR, text. StatusFunction, Array. A function to be called when the request finishes after success and error callbacks are executed. The function gets passed two arguments The jq. XHR in j. Query 1. XMLHTTPRequest object and a string categorizing the status of the request success, notmodified, error, timeout, abort, or parsererror. As of j. Query 1. Each function will be called in turn. This is an Ajax Event. So the best idea would be to show the indicator in the callback passed to before. Send and hide it in complete. I dont understand why you use POST as your are not sending any data at least in your example code.