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fix(v10/replay): don't rewrite already-emitted nodes when syncing mirror attributes - #23588
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logaretm wants to merge 2 commits into
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fix(v10/replay): don't rewrite already-emitted nodes when syncing mirror attributes#23588logaretm wants to merge 2 commits into
logaretm wants to merge 2 commits into
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…attributes `syncMirrorAttributesFromMutationEvent` mutated the serialized node stored in rrweb's mirror in place. That object is the very same one rrweb emitted in an earlier `adds` payload, so when the event buffer holds events unserialized (`useCompression: false`), the mutation rewrote already recorded history. The worst case is `style`: rrweb emits compact style mutations where the value is a partial diff object rather than the full style string, so an element's recorded inline style could be replaced by just the properties that changed. For a Radix/Floating UI popover that meant losing `position: fixed` and its offsets, and the popover rendering somewhere off screen during playback. Store a copy in the mirror instead of mutating the original, and only sync the attributes that can actually show up in a click breadcrumb.
… the mirror `getAttributesToRecord` is handed rrweb's serialized attributes, which are shared with events that may not be serialized yet, and it was writing the `data-sentry-element` -> `data-sentry-component` fallback back onto them. Derive it on the returned object instead.
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Backport of: #23426