iPhone4, UIWebView and HTML5

is there any list which HTML5 features the UIWebView supports and which not? I am interested mainly in:

1) localStorage/sessionStorage

2) offline manifest

3) web sockets

4) web workers

In pre-iOS4 there was not an offline manife开发者_开发技巧st support, which was necessary to program in objective-C, which - when done broke the localStorage support, since the UIWebView does not allow sharing localStorage content between pages accessed online and pages manually downloaded and stored in the file system, because the URL was different

Thanks a lot BR STeN

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The right answer ought to be caniuse.com which is currently the best site for non-mobile browser info. From what I've found there is no other site which has this sort of information. I would encourage you to encourage the maintainer of caniuse.com to add mobile browser information. You can do that by posting here:

http://a.deveria.com/?p=82#comments