Enable Cross Domain AJax File Upload using jquery file upload plugin

1. Enable Cross Domain Ajax Request

2.  Download Blueimp file upload. (I will be using this jquery file upload plugin for my ajax upload).


1. First thing first is to initialize your file upload on the client side.

<input id="fileupload" type="file" name="file">

    url: //url for upload handler,
    datatype: 'json',
    xhrFields: {
        withCredentials: true
    done: function (e, data) {
       //code for done uploading callback

As you can see above i set withCredentials to true which will help me for xdomain request

And for the server side (i use php for this one)


if (isset($_FILES['file']) && $_FILES['file']['error'] == 0) { // handle upload heare}

You should be wondering why there is a blocking for REQUEST METHOD “OPTION” because it will validate if the request is authentic which will depend on the response header YOURRESTRESPONSE is a custom function i created for modified header response. The functin contains modifying

Access-Control-Allow-Credentials your_other_origin
Access-Control-Allow-Origin  'true'
Access-Control-Allow-Methods  'POST PUT DELETE GET OPTIONS'

Above Properties are stated on Enable Cross Domain Ajax Request

If YOURRESTRESPONSE is success. Blueimp ajax upload will automatically send another request for file upload.
And after that your upload file should be working.


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