[Error] There are some read requests waitng on finished stream

[d-ivashchuk]

hey @lukeapage! thanks for writing the library! we are currently using it in github.com/lost-pixel and I've stumbled on this annoying error which I can't make sense of. Maybe you will be able to help us here:

Code:

const express = require("express");
const { PNG } = require("pngjs");
const fs = require("fs");

const app = express();

app.get("/", (req, res) => {
  const blah = Buffer.from("blah");
  const pngBuffer = fs.readFileSync("./test.png");
  const pngBufferEdited = fs.readFileSync("./test-2.png");
  const blueBuffer = fs.readFileSync("./blue.png");
  const aotBuffer = fs.readFileSync("./aot.png");

  const png = PNG.sync.read(pngBuffer);
});

app.listen(8080);

note that all other images that I used for this reproduction work, except the test.png

Reproduction: https://codesandbox.io/s/node-js-forked-2oellg?file=/src/index.js

Image that it breaks for(test.png) in code above:

Thanks a lot for you assistance 🙌

[lukeapage]

I found this site: https://www.nayuki.io/page/png-file-chunk-inspector

Its corrupted/missing a chunk:

the library isn't great at error recovery. Feel free to fix it.