I got similar error when I upgraded my node version to v21. This is due to older version of whatswg-url used inside @supabase/node-fetch.

One quick workaround till the team upgrades this dependency is to override the version in your package.json. Since I use pnpm as a package manager. I am using following snippet inside my package.json

	"pnpm": {
		"overrides": {
			"whatwg-url": "13.0.0"
		}
	}

any updates here?

I would also appreciate an upgrade :)

Any schedule for this? Its an annoying warning in the main javascript SDK.

I guess there are two ways to fix this:

• release new @supabase/node-fetch based on node-fetch v3, which doesn't depend on whatwg-url, and use it from this library
• use native fetch instead of @supabase/node-fetch

In my opinion, the second is better since Node.js v18, the oldest maintained LTS, is supporting fetch.
However, that means the library will stop supporting dead versions of Node.js.
supabase is a business so it may be difficult to do that.

Anyway, I can contribute so please let me know, maintainers