This limitation is known as the same origin server security policy.
这项限制就是相同初始服务器安全性策略。
The scalability benefit of the tag comes at the cost of sidestepping the Same Origin Policy security model, introducing potential attack vulnerabilities.
标记的可伸缩性优点的获得以避开同源策略安全性模型为代价，可能导致易于收到攻击。
he same-origin policy fails by forcing 'Web applications today to either sacrifice security or functionality.'
同源策略的失败在于它迫使‘现在的网络应用，要么选择牺牲掉安全，要么选择牺牲掉功能。’
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