Unverified60% confidenceFactExact time
MutationObserver is a browser-native DOM change monitoring API that reduces CPU usage by approximately 90% compared to polling.
2
Sources
60%
Confidence
Long-term
Relevance
7/6/2026
First Seen
Sources
Alibaba Open-Sources Page-Agent: A Web AI Agent for Controlling Interfaces with Natural Language
githubGitHub Trending7/5/2026
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