WebWorkers - one of the first approaches I thought of. It would be quite difficult to ensure safety. While impossible to freeze the page, there would be attack vectors possible (for example unsafe network requests). Also, it would be impossible to pause the execution. It'd be possible to kill it and restart (on clicking off and on the tile), but that's not the nicest solution.
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，这一点在旺商聊官方下载中也有详细论述
Additional technical specifications, configure-to-order options, and accessories are available at apple.com/mac.
Даниэль Левибританский политолог, президент Проекта «США — Ближний Восток»