dynamic imports with data: and blob: URIs

[dbushell]

What version of Bun is running?

1.0.7

What platform is your computer?

Darwin 23.1.0 arm64 arm

What steps can reproduce the bug?

Import a module from a data: URI:

const code = `
function hello() {
  console.log('Hello, World!');
}
export default hello;
`;
const url = `data:text/javascript;base64,${btoa(code)}`;
const mod = await import(url);
mod.default();

Import a module from a blob: URI:

const code = `
function hello() {
  console.log('Hello, World!');
}
export default hello;
`;
const blob = new Blob([code], {type: 'text/javascript'});
const url = URL.createObjectURL(blob);
const mod = await import(url);
URL.revokeObjectURL(url);
mod.default();

What is the expected behavior?

"Hello, World!" should be logged to the console for both techniques.

What do you see instead?

The data: URI example errors:

error: FileNotFound reading "data:text/javascript;base64,CmZ1bmN0aW9uIGhlbGxvKCkgewogIGNvbnNvbGUubG9nKCdIZWxsbywgV29ybGQhJyk7Cn0KZXhwb3J0IGRlZmF1bHQgaGVsbG87Cg=="

The blob: URI example errors:

error: Cannot find package "undefined" from "/[PATH]/test.js"

Additional information

Deno, Firefox, Safari, and Chromium browsers support both techniques. Node supports data: but not blob:. Bun is the only runtime that does not support either.

[jimmywarting]

If we could, then i would also like to want to throw in the Worker into this issue as well if it's somewhat related. otherwise a new issue could be created just for that.

new Worker('blob:...', { type: 'module' })
new Worker('[data](data:text/javascript;base64,...', { type: 'module' })

( if it still is an issue - it was it the last time i checked )