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Uncaught SyntaxError: Unexpected token '<' When I use libarchive.js

Stack Overflow Asked on December 23, 2021

I’m trying to use libarchive.js to decompress a zip file that protected by a password.

import {Archive} from 'libarchive.js/main.js';

Archive.init({
    workerUrl: 'libarchive.js/dist/worker-bundle.js'
});

document.getElementById('file').addEventListener('change', async (e) => {
    const file = e.currentTarget.files[0];

    const archive = await Archive.open(file);
    let obj = await archive.extractFiles();
    
    console.log(obj);
});

When I run this code, the console shows below output.
enter image description here

I have tried many workerUrl like below. But the result is same.

workerUrl: 'libarchive.js/dist/worker-bundle.js'
workerUrl: '/libarchive.js/dist/worker-bundle.js'
workerUrl: '../libarchive.js/dist/worker-bundle.js'
workerUrl: '../../libarchive.js/dist/worker-bundle.js'
workerUrl: '/node_modules/libarchive.js/dist/worker-bundle.js'
workerUrl: '../node_modules/libarchive.js/dist/worker-bundle.js'
workerUrl: '../../node_modules/libarchive.js/dist/worker-bundle.js'

What is the problem?

Thanks.

2 Answers

I used this code.

Archive.init({
    workerUrl: '/libarchive.js/dist/worker-bundle.js',
});

And I put libarchive.js in /public folder of my Vue project. It worked.

Answered by Raymond on December 23, 2021

Whenever you see this:

▶ Uncaught SyntaxError: Unexpected token '<' some-file.js:1

It's usually because the request to load some-file.js returned an HTML page displaying a 404 error, but it's being interpreted as JavaScript and crashing on the very first character, which in the source of an HTML page is usually <.

To solve your problem, you can try the following URL from this answer:

/lib/worker-bundle.js

Or you can try to view worker-bundle.js directly in a browser. Either you will locate the correct URL, or you will learn that your server is simply not serving that file at all.

Answered by GirkovArpa on December 23, 2021

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