[BUG] Serious questions about iris.withpostmaxmemory and iris.limitrequestbodysize，The connection was not disconnected when the uploaded file exceeded its capacity

platform: window10
go version: go1.16.6 windows/amd64
iris version: github.com/kataras/iris/v12@v12.2.0
upload file size: 1G

See the notes below

Step 1:
app := iris.New()
app.Run(
iris.Addr(fmt.Sprintf("%s:%d", "127.0.0.1", 8081)),
iris.WithoutServerError(iris.ErrServerClosed),
iris.WithOptimizations,
iris.WithTimeFormat(time.RFC3339),
// Set WithPostMaxMemory 8M
iris.WithPostMaxMemory(8 << 20),
);

Step 2:
// iris.LimitRequestBodySize
//[BUG] There was no response and the connection was not disconnected
app.Post("/upload", iris.LimitRequestBodySize(8<<20), func (ctx iris.Context) {
// ...
})

or

app.Post("/upload", iris.LimitRequestBodySize(8<<20), func (ctx iris.Context) {
maxSize := 8 << 20
if ctx.GetContentLength() > maxSize {
//[BUG] There was no response and the connection was not disconnected
ctx.StopWithStatus(iris.StatusRequestEntityTooLarge)
return
}

ctx.Next()
})