how to stop tinymce from removing my tag?

Ive ran into a problem with tinymce.

For some reason it is removing the < link >, Does anyone know how I would be able to fix this?

  tinymce.init({
    selector: 'textarea.tinymce',
    theme: 'modern',
    skin: 'bstyle',
    branding: false,
    extended_valid_elements:'script[id|language|type|src],link[rel|href|type|media]',

Thanks in advance,

~I Quest