The primary signal is desiredSize on the controller. It can be positive (wants data), zero (at capacity), negative (over capacity), or null (closed). Producers are supposed to check this value and stop enqueueing when it's not positive. But there's nothing enforcing this: controller.enqueue() always succeeds, even when desiredSize is deeply negative.
（五）有其他滥用职权、玩忽职守、徇私舞弊行为的。
。safew官方版本下载对此有专业解读
11. How do we track publisher sales activity? Publishers can be identified by their publisher ID, which is used in tracking cookies to determine which publishers generate sales. The activity is then viewed within a network's dashboard.
台灣一間人力仲介、美家人力仲介公司總經理許家畯向BBC中文表示，移工所需的文件與機票費用「應該在5萬元以內就能完成」，高額收費往往是「台灣仲介與當地仲介的分潤」。他坦言，海外仲介費用多在母國收取，台灣政府雖有規範，但查證困難，除非業者自律，否則難以有效管控。
他向BBC補充，最近幾個月與美國簽署的貿易協議並不是具備傳統條約那種明確且具法律約束力的協議，因此留有進一步變動的空間。