set_error_handler doesn't handle string rejections

Not sure if this is a bug or an expected limitation.

In express I use express-promise-router to add this. Would be nice to see this built into hyper-express.

const HyperExpress = require('hyper-express');
const webserver = new HyperExpress.Server();

// Works
webserver.get('/works', () => {
    throw new Error('Hello World');
});

// Never responds
webserver.get('/not-working', async () => {
    await new Promise((_resolve, reject) => {
        return reject('Hello World');
    });
});

// This is only called for the thrown error but not the rejection
webserver.set_error_handler((_request, _response, error) => {
    console.log('error', error);
});

webserver.listen(80)
.then(() => console.log('Webserver started on port 80'))
.catch(() => console.log('Failed to start webserver on port 80'));

[ImLunaHey]

Thank you so much, this works perfectly. 🥳

[kartikk221]

This issue has been fixed in the recently released v6.2.4 of HyperExpress. Let me know If you encounter any other issues.