Client Side Media does not work in Playground

Why this is a good first issue

Issue requires understanding client-side media handling in Playground context.

AI Summary

The issue involves client-side media uploads failing in Playground, requiring research and a temporary fallback solution. The scope is somewhat clear but requires Playground-specific knowledge. No immediate blockers mentioned but needs investigation.

Issue Description

Description

Currently fails in Playground
Research what a fix would require
Disable in Playground for now (fall back to server side mechanism)

Step-by-step reproduction instructions

Launch Playground
try uploading media

See https://github.com/WordPress/wordpress-playground/issues/2954

Screenshots, screen recording, code snippet

No response

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

Please confirm which theme type you used for testing.

Block
Classic
Hybrid (e.g. classic with theme.json)
Not sure

GitHub Labels

[Type] Bug[Status] In Progress[Feature] Client Side Media