formdata shim

[jimmywarting]

recommend formdata-polyfill

[trgwii]

Unfortunately we can't use this library yet since it only exposes ESM, and we're currently building to CommonJS.

[jimmywarting]

fyi, node-fetch v3 is going to be released soon and it will become a esm only package

[trgwii]

Oh damn, we'll probably have to convert eventually, but we need to take it slow to ensure minimal breakage, so we can't really just switch on a whim.

[wojpawlik]

form-data is problematic. After fetch-blob doesn't take 8 MB to install, I'd switch to tiny https://npm.im/formdata-polyfill if we switch to ESM, or small https://npm.im/formdata-node if we don't.

[wojpawlik]

It'd be nice if formdata-polyfill provided a .d.ts file for typings @jimmywarting

[jimmywarting]

Most of the size comes from fetch-blob depending on web stream polyfills.
formdata-node also depends on fetch-blob

@MattiasBuelens is working on reducing the size here: MattiasBuelens/web-streams-polyfill#83

[jimmywarting]

@wojpawlik JSDoc can provide same level of typing support as d.ts
So I borrowed the typing from DOM lib instead of writing my own set, cuz it's fully spec compatible (appart from the constructor)

fixed in: jimmywarting/FormData@5d7dff9

[wojpawlik]

Fixed in d401de9.