HTML5的localStorage数据库通常是大小有限的 – 每个域的标准大小是5或10 MB。这些限制是否可以由子域名规避(例如，example.com，hack1.example.com和hack2.example.com都有自己的5 MB数据库)？并且在标准中有什么规定父域是否可以访问他们的孩子的数据库？我找不到任何东西，我可以看到以任何一种方式做的参数，但似乎需要一些标准模型。
解决方法@H_502_4@
从
http://dev.w3.org/html5/webstorage/#disk-space
A mostly arbitrary limit of five megabytes per origin is recommended. Implementation Feedback is welcome and will be used to update this suggestion in the future.
它还提到：
User agents should guard against sites storing data under the origins other affiliated sites,e.g. storing up to the limit in a1.example.com,a2.example.com,a3.example.com,etc,circumventing the main example.com storage limit.
A mostly arbitrary limit of five megabytes per origin is recommended. Implementation Feedback is welcome and will be used to update this suggestion in the future.
它还提到：
User agents should guard against sites storing data under the origins other affiliated sites,e.g. storing up to the limit in a1.example.com,a2.example.com,a3.example.com,etc,circumventing the main example.com storage limit.
