Can't open zip file after rezipping it with fflate

[realmayus]

Hi, I'm trying to unzip an uploaded file and rezip it afterwards. I'm using an input (type=file) and this code gets called when the file changes:

<input className={styles.input} type="file" onChange={e => setFile(e.target.files[0])}/>
...

import * as fflate from "fflate";

...
    if (file != null) {
      const fr = new FileReader(file);
      fr.addEventListener('load', (e) => {
        const uint8 = new Uint8Array(e.target.result);
        let unzipped = fflate.unzipSync(uint8);
        const newZip = fflate.zipSync(unzipped);
        const blob = new Blob([newZip], {type: "application/zip"});
        const objectUrl = URL.createObjectURL(blob);
        window.open(objectUrl);
      })
      fr.readAsArrayBuffer(file);

Somehow, I can't open the file anymore after downloading it. I also noticed that the output file is significantly bigger than the original one. What could be the reason?

[101arrowz]

My mistake, I was forgetting to add the data into the file in the synchronous ZIP function, but I only tested the asynchronous version. Will push an update soon.

[101arrowz]

I've updated the package with v0.5.1 on NPM, which fixes this bug. Let me know if you have any issues, and thanks for reporting the problem.