TC39 proposal cancellation

There are any plan for [TC39 proposal cancellation](https://github.com/tc39/proposal-cancellation)?

If not:
Based on TC39:
user-controlled cancellation of asynchronous operations through the adoption of a set of native platform objects.

At first, we must have need to asynchronous operations as long as we can use cancelling asynchronous operations that cleared and consistent approach as below:

- Asynchronous functions or iterators
- Fetching remote resources (HTTP, I/O, etc.)
- Interacting with background tasks (Web Workers, forked processes, etc.)
- Long-running operations (animations, etc.)

Start by reading the linked TC39 proposal cancellation document and the http-client entry points built around XMLHttpRequest. Compare the proposal's cancellation goals with the listed asynchronous use cases, then determine whether this repository has a defined cancellation plan. Done means the project's support or non-support decision and its scope are clearly documented.

Written by the indexing model from the issue text.