{% extends "_templates/base.html" %}
{% set page_title = "CORS" %}
{% block sidebar %}
{{ api_links(options=['cors']) }}
{% endblock %}
{% block content %}
{% markdown %}

# Cross-Origin Resource Sharing (CORS) {: .page-header }

[CORS](https://developer.mozilla.org/en-US/docs/HTTP/Access_control_CORS?redirectlocale=en-US&redirectslug=HTTP_access_control)
or Cross-origin resource sharing allows client-side JavaScript to make AJAX requests to another domain.

Fine Uploader has support for uploading and sending requests via CORS, but there are a few
caveats depending on which browser is being used.

{{ alert(
"""
CORS in IE8 and IE9 is supported via the [`XDomainRequest`](http://msdn.microsoft.com/en-us/library/windows/apps/Hh767443.aspx)
object. `XDomainRequest` does not support setting the 'Content-Type' header
(or any headers for that matter) so for some server-side languages and
frameworks you are going to actually need to parse the request payload
programmatically rather than relying on the framework to do it for you.
""", "warn") }}
[For more information, see the associated blog post](http://blog.fineuploader.com/2013/01/31/cors-support-in-3-3/)

{% endmarkdown %}
{% endblock %}