SharedArrayBuffer is not defined

[ottoptika]

Hey
I'm trying to convert Blob data from RecordRTC from webm to mp4. The script seems to be working and initialized, but React/NextJS throws a SharedArrayBuffer. Searching for that term gives me some answers about some vulnerability in SAB, but I don't understand what's up and down. It says there's a way to re-enable it though?
Is it a bug in ffmpegwasm or is there something deeper to it? As I'm creating a ReactJS website, I should be able to follow your example of your 'react-app' no?

Thanks

[skogsbrus]

From https://github.com/ffmpegwasm/ffmpeg.wasm:

Only browsers with SharedArrayBuffer support can use ffmpeg.wasm, you can check HERE for the complete list.

[DavraYoung]

make sure you add setupProxy.js file in your src folder

[DavraYoung]

the contents should be:

module.exports = (app) => {
    app.use((_, res, next) => {
        res.setHeader('Cross-Origin-Opener-Policy', 'same-origin');
        res.setHeader('Cross-Origin-Embedder-Policy', 'require-corp');
        next();
    });
};

[libo1106]

1. copy ffmpeg-core in you public folder, like this

2. set corePath with createFFmpeg()

  const ffmpeg = createFFmpeg({
    corePath: "/ffmpeg/[email protected]/ffmpeg-core.js",
    log: true,
  });

3. npm start with HTTPS env

HTTPS=true npm start