How do you set accept headers in remote_function?

Rails
1

How do I set the accept header for an AJAX request from the
remote_function helper? I’ve tried everything I can think of but no
dice.

<%= remote_function(

…

:requestHeaders => { :Accept => “application/xml” },

…

) %>

What I want:
new Ajax.Request(url, {
…
requestHeaders: { “Accept” : “application/xml”},
…
});

Thanks in advance