I remember we don't serialize `getComputedValue()` for all shorthands. The related spec issue is https://github.com/w3c/csswg-drafts/issues/2529, which was resolved last year. That means it's time to fix this issue for all properties.
Bug 1574222 Comment 4 Edit History
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I remember we don't serialize `getComputedValue()` for all shorthands. The related spec issue is https://github.com/w3c/csswg-drafts/issues/2529, which was resolved last year (but haven't updated the spec yet I guess). That means it's time to fix this issue for all properties.