Implementation method of two-level domain name or cross-domain shared cookies _javascript tips

Note the point:
1, when you have a cookie group (or a cookie dictionary) using the domain attribute to specify the field name, when you modify or add to the members of the group, be sure to add resonse.cookies (cookiename) after the operation. Domain attribute.
2, if not necessary, please do not modify the Set domain cookie group, directly using Response.Cookies ("cookietext") = Cookievalue to create a new cookie. For each independent response.cookies ("Cookietext"), whether or not there is a dictionary, write one at a time, if you need to write more than once, for another response.cookies ("Cookietext"). This is very important.
3, Response.Cookies ("CookieName"). Secure = False,secure property must be False
Example:
Response.Cookies ("Uto") ("Utorname") =utorname
Response.Cookies ("Uto") ("Utorpwd") =utorpwd
Response.Cookies ("Uto"). Domain= "Utoper.com"
Response.Cookies ("Uto"). Secure =false
4, IE for the. CN short domain name support has a major bug, no way to write cookies, someone tested: http://blog.csdn.net/xssh913913/archive/2007/08/04/1725882.aspx solution:
such as h5.cn domain name, in h5.cn all subdomains, no matter from which child domain name receives the information, all sends to h5.cn this domain name to write the cookies, writes does not set the domain name, namely these two sentences do not.
Response.Cookies ("User"). Domain = "h5.cn"
Response.Cookies ("User"). Secure =false
This makes it normal to invoke cookies in any other subdomain.