Go服务器在arm64上返回损坏的图像

Question

I've written a simple HTTP image server:

go/src/demo/demo.go:

package main

import (
  "net/http"
  "github.com/gorilla/mux"
)

func main() {
  router := mux.NewRouter()
  router.HandleFunc("/foobar", func(w http.ResponseWriter, r *http.Request) {
    http.ServeFile(w, r, "/home/foobar/test.jpg")
  })

  http.ListenAndServe(":5000", router)
}

I compile it (PWD=$HOME/go/src/demo):

GOPATH=$PWD/../../ go build -o demo

And run:

./demo

Then in Chrome I open the URL. The image is corrupt -- reloading produces different corruption each time, once in a while it is fine. Larger images (~200KB) fail more often, smaller images (~20KB) fail less often.

Additional details:

go version produces go version go1.9.5 linux/arm64.

On my Macbook, this causes no issues -- only occurs on arm64 (looks like ResponseWriter does not implement flushing). I'm at a loss. Any ideas?

Answer 1

Looks like it was an issue with the go1.9.5 release. Updated toolchain to go1.10.1 and the issue disappeared.