"stream/web is an experimental feature" warning on Node 16.5.0

It looks like the warning below happens on Node 16.5.0. I tried with 14.17.4 and didn’t get the warning.

(node:17339) ExperimentalWarning: stream/web is an experimental feature. This feature could change at any time

node --trace-warnings index.js
(node:17390) ExperimentalWarning: stream/web is an experimental feature. This feature could change at any time
    at emitExperimentalWarning (node:internal/util:205:11)
    at node:stream/web:7:1
    at NativeModule.compileForInternalLoader (node:internal/bootstrap/loaders:312:7)
    at NativeModule.compileForPublicLoader (node:internal/bootstrap/loaders:252:10)
    at loadNativeModule (node:internal/modules/cjs/helpers:40:9)
    at Function.Module._load (node:internal/modules/cjs/loader:798:15)
    at Module.require (node:internal/modules/cjs/loader:999:19)
    at require (node:internal/modules/cjs/helpers:93:18)
    at Object.<anonymous> (/.../test/node_modules/fetch-blob/streams.cjs:7:31)
    at Module._compile (node:internal/modules/cjs/loader:1095:14)

Reproduction

Steps to reproduce the behavior:

Create a index.js file:

import fetch from "node-fetch";

package.json:

{
  "name": "test",
  "type": "module",
  "dependencies": {
    "node-fetch": "^3.0.0"
  }
}

Expected behavior

Warning shouldn’t display.

Your Environment

software	version
node-fetch	3.0.0
node	16.5.0
npm	7.19.1
Operating System	Linux

Additional context

[jimmywarting]

you can ignore it with --no-warning flag if u like.

[jeswin]

Sorry to bring this up again. I strongly disagree with the approach of breaking production apps by introducing support for experimental features in a mainline, non-alpha version - this package has 30 million weekly downloads on npm. I saw that a fix has been committed, but that looks a bit like a hack; the correct approach would be to not depend on unstable APIs instead of suppressing warnings.

Given the 30m downloads figure, there will be quite a few dependent apps which are console apps. Text is how data gets passed around (piped) between programs, this has broken all of them. In addition to making the output visually ugly.

Disclosure: I am the maintainer of bashojs, and this basically breaks my package. I can downgrade, which is what I’ll probably do.