♻️🐛 Proxy form as functional stateless component, bugfix (#18852)
♻️🐛 Proxy form as functional stateless component, bugfix (#18852)

- Proxy form requires no state, so it should be stateless.
- Fixes a bug where the regex pattern `[^\s]` would be escaped to `[^s]`, effectively disallowing any URL with an `s` in it.
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