source: frontend/node_modules/is-path-inside/index.js

'use strict';
const path = require('path');

module.exports = (childPath, parentPath) => {
        const relation = path.relative(parentPath, childPath);
        return Boolean(
                relation &&
                relation !== '..' &&
                !relation.startsWith(`..${path.sep}`) &&
                relation !== path.resolve(childPath)
        );
};