Internet Explorer doesn't send Accept header

[nnarhinen]

Internet Explorer isn't sending the Accept header correctly, it sends: /

reproduce code

$('#fe-discountfile').fileupload({
  type: 'PUT',
  dataType: 'json',
  url: $('#fe-discountfile').closest('form').attr('action'),
  done: function (e, data) {
    alert(data.result.rows[0].name);
  }
});

[nnarhinen]

Oh, github strips input..

it sends the header as /

[nnarhinen]

And btw I'm using Internet Explorer 9

[blueimp]

File Uploads with IE are done using the iframe transport.
The iframe transport is a simple HTML form based upload with an iframe target.
Therefore it doesn't support PUT uploads and also doesn't support modifying any headers.

[nnarhinen]

I don't think this is the case. IE9 seems to be using XHR and PUT method. The accept header handling just differs. So maybe this should be fixed properly (by adding full xhr support for IE9) or then force iframe uploads for IE9..

[blueimp]

No released version of IE supports XHR file uploads.
The plugin doesn't check for browser types or versions, but rather tests capabilities and falls back to the iframe transport if XHR file uploads are not supported:
https://github.com/blueimp/jQuery-File-Upload/blob/master/jquery.fileupload.js#L145

Did you include the iframe transport library?

[nnarhinen]

OK,
so forget about the test case I wrote. I didn't test it properly.

Yeah I didn't include the iframe transport library because I don't want the iframe upload. Then why is IE uploading with PUT if XHR isn't supported?

here's a snippet from access.log

"PUT /products/discounts HTTP/1.1" 500 20 "http://myservice.com/" "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)"

So IE9 definitely is PUTting atleast.

[blueimp]

Yeah I didn't include the iframe transport library because I don't want the iframe upload. Then why is IE uploading with PUT if XHR isn't supported?

The iframe transport is enabled simply by adding 'iframe ' in front of the jQuery ajax dataType option:
https://github.com/blueimp/jQuery-File-Upload/blob/master/jquery.fileupload.js#L268

If no iframe transport has been registered, jQuery will fall back to using XHR as transport, but without actually uploading any files.

To prevent these useless XHR uploads, you can return false in the send callback when the dataType option contains "iframe":

$('#fileupload').bind('fileuploadsend', function (e, data) {
    if (data.dataType.indexOf('iframe') !== -1) {
        return false;
    }
});

[chronossc]

How is that IE error today? I getting 403 on Django because I do not send some headers.