MSW are actively working on websockets mocking: https://github.com/mswjs/msw/pull/2011 They have an RC release for 2.3 and the PR is ready for review, so I expect this to be out in the next few weeks.
MSW are actively working on websockets mocking: mswjs/msw#2011
They have an RC release for 2.3 and the PR is ready for review, so I expect this to be out in the next few weeks.