What is the problem this feature will solve?

We can provide query and hash in ESM imports:

// 1.mjs
import './2.mjs?key=value#hash';

// 2.mjs
const { search, hash } = new URL(import.meta.url);
console.log({ search, hash });

$ node 1.mjs
{ search: '?key=value', hash: '#hash' }

However, AFAICT there is no way to provide them directly to main module:

$ node 2.mjs
{ search: '', hash: '' }

What is the feature you are proposing to solve the problem?

Command line option(s) to provide search and hash, e.g.

$ node 2.mjs --import-search="?key=value" --import-hash="#hash"
or
$ node 2.mjs --esm-appendix="key=value#hash"

What alternatives have you considered?

Right now we can do this with empty script:

$ node --input-type="module" --import="./2.mjs?key=value#hash" < /dev/null
{ search: '?key=value', hash: '#hash' }

$ node --import="./2.mjs?key=value#hash" --eval=";"
{ search: '?key=value', hash: '#hash' }

Which

• potentially will mess up with import.meta.isMain
• messes up with process.argv because process.argv[1] will contain first argument instead of path to 2.mjs
• requires to provide URL, i.e. to percent-encode special characters, to start relative paths with . or .., and to use forward slashes on Windows