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Bug 2066504 Comment 0 Edit History
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A carousel slide unmounts its ImpressionStats wrapper while hidden, and the dedupe state that suppresses repeat impressions (impressionCardGuids) lives on that instance, so it is destroyed along with it. Every time a slide rotates back into view it reports a fresh impression, inflating counts for a tab left sitting idle.
A carousel slide unmounts its ImpressionStats wrapper while hidden, and the dedupe state that suppresses repeat impressions (`impressionCardGuids`) lives on that instance, so it is destroyed along with it. Every time a slide rotates back into view it reports a fresh impression, inflating counts for a tab left sitting idle.