package main import ( "io/ioutil" "strings" "github.com/gin-contrib/static" "github.com/gin-gonic/gin" ) func main() { router := gin.Default() router.Use(static.Serve("/", static.LocalFile("dist", true))) router.NoRoute(func(c *gin.Context) { accept := c.Request.Header.Get("Accept") flag := strings.Contains(accept, "text/html") if flag { content, err := ioutil.ReadFile("dist/index.html") if (err) != nil { c.Writer.WriteHeader(404) c.Writer.WriteString("Not Found") return } c.Writer.WriteHeader(200) c.Writer.Header().Add("Accept", "text/html") c.Writer.Write((content)) c.Writer.Flush() } }) router.Run(":1224") }