李维·斯特劳斯，在1994年首先将大规模定制的思想用在其原版女士女仔裤上，他在电力为顾客良好尺寸，并将这些尺寸通过电脑发送到制造工厂。
Levi Strauss, which pioneered the idea in 1994 with its Original Spin jeans for women, measured customers in its stores and sent their details electronically to its factory.
就连曾经相对包容的科威特也正审理思想犯罪的民众：近几个月，约40名民众因通过Twitter发送侮辱性消息被指控。
Even Kuwait, once a haven of relative tolerance, now tries citizens for thought crimes: in recent months some 40 people have been charged for sending insulting messages via Twitter.
总体思想十分简单：使用客户机cookie(如果可用的话)确定被缓存的数据，如果自上一次轮询事件以后没有产生新的数据，则发送一个304状态。
The general idea is simple: Use a client cookie (if available) to identify the cached data, and send a 304 status if no new data has arisen since the last polling event.
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