Rollup: `this` has been rewritten to `undefined`

[jtlapp]

Rollup was giving me this warning for http-status-codes/build/es/index.js:

bundles src/frontend/main.ts → public/build/bundle.js...
LiveReload enabled
(!) `this` has been rewritten to `undefined`
https://rollupjs.org/guide/en/#error-this-is-undefined
node_modules/http-status-codes/build/es/index.js
1: var __assign = (this && this.__assign) || function () {
                   ^
2:     __assign = Object.assign || function(t) {
3:         for (var s, i = 1, n = arguments.length; i < n; i++) {
...and 1 other occurrence

To eliminate it, I added the following line to my rollup.config.js:

export default {
    // ...
    context: {}, // needed for loading http-status-codes
    // ...
}

But ideally, the module shouldn't be referencing this from the top level.