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Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (e.g. links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (e.g., changing to naming or structure of the API in a non-backward-compatible way).
This change was meant to be part of the base speculation rules HTML spec change for completeness. See https://github.com/whatwg/html/issues/11123#issuecomment-3336819191