Interactivity Router: Fix initial page cache #58496
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Flaky tests detected in e82e7c5. 🔍 Workflow run URL: https://github.com/WordPress/gutenberg/actions/runs/7725587601
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luisherranz
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Jan 31, 2024
Co-authored-by: Luis Herranz <[email protected]>
Co-authored-by: Luis Herranz <[email protected]>
Co-authored-by: Luis Herranz <[email protected]>
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[Type] Enhancement
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What?
Epic: #56803
This PR ensures the first page is cached using the vDOM tree generated during hydration.
Why?
As the
@wordpress/interactivity-routermodule is loaded asynchronously, it currently caches the first page traversing the current DOM, which interactive blocks could have modified. This PR prevents that issue by using the same vDOM hydrated.How?
Exposing from the
@wordpress/interactivitymodule aWeakMapcalledinitialVdom, relating the generated vDOM trees with the root node where they are hydrated. ThisinitialVdomweak map is exposed from a function namedprivate APIs, which also returns other APIs meant to only be used internally.Testing Instructions