 
                 rres.on "data", (chunk) =>
                     buf = new Buffer(pre_data.length + chunk.length)
-                    pre_data.copy(buf,0)
-                    chunk.copy(buf,pre_data.length)
+                    pre_data.copy(buf, 0)
+                    chunk.copy(buf, pre_data.length)
                     pre_data = buf
 
                 # when preroll is done, call the output's callback


            # send out headers
            headers = 
                "Content-Type":         "audio/mpeg",
                "Connection":           "close",
                "Transfer-Encoding":    "identity",
                "Content-Length":       length,
                "Accept-Ranges":        "bytes"

            if rangeRequest
                headers["Cache-Control"] = "no-cache"

        count = @_counter++

        # short-circuit if we're missing any options
        console.debug "preroller opts is ", @options.preroll, key
        unless @options.preroll?.server &&
        @options.preroll?.key &&
        @options.preroll?.path
            cb?()
            return true

