[ruby-on-rails] WARNING: Can't verify CSRF token authenticity rails

For those of you that do need a non jQuery answer you can simple add the following:

xmlhttp.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'));

A very simple example can be sen here:

xmlhttp.open("POST","example.html",true);
xmlhttp.setRequestHeader('X-CSRF-Token', $('meta[name="csrf-token"]').attr('content'));
xmlhttp.send();

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