Middleware does not work for root path

[jkinghed]

Either I'm missing something in the documentation (very likely), or middleware does not trigger for root paths. I've tried both GET and POST.

Example code

const lambdaApi = require('lambda-api');
const api = lambdaApi({
    base: 'user',
    logger: true
});

api.use((req, res, next) => {
    console.log('MIDDLEWARE START');
    req.myVar = 'YES, HELLO';

    next();
});

//static path
api.get('/hello', async (req, res) => {

    console.log('/hello', req.myVar);
    res.json({hello: req.myVar});

});

//root path
api.get('/', async (req, res) => {

    console.log('root', req.myVar);

    res.json({hello: req.myVar});

});

exports.handler = async (event, context) => {
    console.log('event:', JSON.stringify(event, undefined, 4));
    console.log('context:', JSON.stringify(context, undefined, 4));
    return await api.run(event, context);
};

And logs

API Gateway has ANY method for base path /user

Any pointers on what I'm doing wrong?