第九条 境内单位或者个人跨境销售下列服务、无形资产，税率为零：
The true flag for useCapture is important. Browser events propagate in two phases: first, they travel down the DOM tree from the root to the target (capture phase), then they bubble up from the target back to the root (bubble phase). By listening in the capture phase, my listener fires before any event listener attached by HotAudio’s player code. Even if fermaw tried to cancel or suppress the event, he’d be too late because the capturing listener always fires first.
。关于这个话题，同城约会提供了深入分析
Author(s): Junwei Che, Xuezhi Wang
This sounds reasonable until you see how easily it goes wrong: