Here\'s the code:
render :file => @somedir + \"/blah.xml\"
...but the resulting MIME type is text/html when I check in FireBug. How do I
Per http://api.rubyonrails.org/classes/Mime/Type.html, you could specify it like so:
render file: @somedir + "/blah.xml", mime_type: Mime::Type.lookup("text/xml")