nimhttpd hangs with `127.0.0.1` but not `localhost` in URL

[hamidb80]

Problem

when I use localhost in URL everything works fine, but when I use http://127.0.0.1:PORT, nimhttpd just does not respond anymore and hangs

Code Example

the provided code copies a image 50 times into the ./temp folder and creates a index.html file for you to see all of them.

import std/[os, sequtils, strutils, math, strformat]
import karax/[karaxdsl, vdom]


func indexPage(root: string, images: seq[string]): VNode =
  buildHtml body:
    for imageName in images:
      img(src = root & imageName, height = "100")
      span: text imageName
      hr()

proc repeatedCopy(filePath, destDir: string, times: int) =
  ## copies file `filePath` into directory `destDir`
  ## for `times` times
  let
    (_, _, ext) = splitFile filePath
    numberLen = toInt ceil log10 tofloat times
  for n in 1..times:
    copyFile filePath, destDir / align($n, numberLen, '0') & ext

proc extractImages(dir: string): seq[string] =
  for path in walkFiles dir/"*":
    let (_, name, ext) = splitFile path
    case ext.toLowerAscii
    of ".png", ".jpg", ".jpeg":
      result.add name & ext

when isMainModule:
  let
    port = parseint paramStr 1
    imagePathToBeCopied = paramStr 2
    localhost = fmt"http://localhost:{port}/"
    ip = fmt"http://127.0.0.1:{port}/"

  discard existsOrCreateDir "./temp"

  repeatedCopy imagePathToBeCopied, "./temp", 50

  writeFile "./temp/index.html":
    # $indexPage(localhost, extractImages "./temp") # <<------------- works fine
    $indexPage(ip, extractImages "./temp") # does not work for some images

run with

nim r play.nim PORT PATH_TO_IMAGE
nimhttpd ./temp -p:PORT

Result

As you can probably see some images does not load at all and reloading the page does not help

Additional Info

windows 10 64bit
nim 1.6.12

[treeform]

I don't know if its related, but I also had nimhttpd just hang. I am not sure why.

[planetis-m]

Hi, I might have the same issue: https://github.com/planetis-m/naylib/issues/122 In the web console this is printed indefinitely:

index.js:759 still waiting on run dependencies:
(anonymous) @ index.js:759
index.js:761 dependency: wasm-instantiate
(anonymous) @ index.js:761
index.js:764 (end of list)