Expired50% confidenceFactExact time
The popup page of a Chrome extension runs in an independent context environment and is destroyed after the popup panel is closed.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/2/2026
First Seen
Valid until: 9/30/2026(expired)
Sources
Related Claims
UnverifiedMainstream browsers such as Chrome have adopted a per-tab independent process sandbox model (Site Isolation).66% similarUnverifiedThe core capabilities of a Chrome extension include content scripts, background service workers, and popup pages.65% similarUnverifiedChrome extension components (popup, content script, background) communicate with each other via chrome.runtime.sendMessage.64% similarUnverifiedChrome introduced a per-tab independent process model starting in 2008, which subsequently evolved into Site Isolation, where each different-origin site runs in an independent rendering process.62% similarUnverifiedpopover提供对应的JavaScript API：showPopover()、hidePopover()、togglePopover()，并可监听beforetoggle和toggle事件62% similar
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