HTML5的localStorage数据库有大小限制。标准大小为每个域5或10MB。建议每个源限制为5MB。
以下内容已说明−
User agents should guard against sites storing data under their origin's other affiliated sites, e.g. storing up to the limit in a1.example.com,a2.example.com, a3.example.com, etc, circumventing the mainexample.com storage limit.
对于尺寸限制 −
A mostly arbitrary limit of five megabytes per origin is suggested. Implementation feedback is welcome and will be used to update this suggestion in the future.
