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Action handler returned invalid data.

src/content/docs/en/reference/errors/actions-returned-invalid-data-error.mdx

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import DontEditWarning from '~/components/DontEditWarning.astro'

<DontEditWarning />

ActionsReturnedInvalidDataError: Action handler returned invalid data. Handlers should return serializable data types like objects, arrays, strings, and numbers. Parse error: ERROR

What went wrong?

Action handler returned invalid data. Handlers should return serializable data types, and cannot return a Response object.

See Also: