Website counter with cookies

package main

import (
    "net/http"
    "strconv"
    "io"
    "fmt"
)

func main() {
    http.HandleFunc("/", index)
    http.Handle("/favicon.ico", http.NotFoundHandler())
    http.ListenAndServe(":8080", nil)
}

func index(w http.ResponseWriter, r *http.Request) {
    count, err := r.Cookie("count")
    var currentCount int
    if err != nil {
        // Cookie doesn't exist
        currentCount = 1
        http.SetCookie(w, &http.Cookie{
            Name: "count",
            Value: strconv.Itoa(currentCount),
        })
    } else {
        currentCount, err = strconv.Atoi(count.Value)

        // Not convertable to string
        if err != nil {
            currentCount = 1
        } else {
            currentCount++
        }

        count.Value = strconv.Itoa(currentCount)
    }

    io.WriteString(w, fmt.Sprintf("Your current visit count is %d", currentCount))

}