我有一个网站设置了一个cookie,让我们说 www.domain.com 名为 aCookie 。需要从其他子域检索此Cookie,因此我将Cookie的域设置为 .domain.com 。
我需要从链接到 sub.domain.com 的iFrame读取和编写Cookie。它们位于同一个域中,因此不存在跨站点限制或任何类型的限制。
奇怪的是,如果我在www.domain.com上编写cookie然后尝试从sub.domain.com更改它的值,则会创建第二个使用相同名称但使用域集的cookie到sub.domain.com,即使我明确地将域设置为.domain.com。
在这种情况发生后,奇怪的事情开始了,因为它不会被读取,或者它将被设置在其中一个cookie上但是从另一个cookie中读取。
知道为什么会发生这种情况以及如何解决它,谢谢?
Cookie.Set("directDepositMethod", directDepositMethod, { expires: 1, secure: true, path: '/', domain: ".domain.com" });
其中set:
if (typeof value != "undefined") { // name and value given, set cookie
options = options || {};
if (value === null) {
value = String.Empty;
options.expires = -1;
}
var expires = String.Empty;
if (options.expires && (typeof options.expires == "number" || options.expires.toUTCString)) {
var date;
if (typeof options.expires == "number") {
date = new Date();
date.setTime(date.getTime() + (options.expires * 24 * 60 * 60 * 1000));
} else {
date = options.expires;
}
expires = "; expires=" + date.toUTCString(); // use expires attribute, max-age is not supported by IE
}
// CAUTION: Needed to parenthesize options.path and options.domain
// in the following expressions, otherwise they evaluate to undefined
// in the packed version for some reason...
var path = options.path ? "; path=" + (options.path) : "";
var domain = options.domain ? "; domain=" + (options.domain) : "";
var secure = options.secure ? "; secure" : "";
document.cookie = [name, "=", encodeURIComponent(value), expires, path, domain, secure].join("");
} else { // only name given, get cookie
var cookieValue = null;
if (document.cookie && document.cookie != String.Empty) {
var cookies = document.cookie.split(";");
for (var i = 0; i < cookies.length; i++) {
var cookie = jQuery.trim(cookies[i]);
// Does this cookie string begin with the name we want?
if (cookie.substring(0, name.length + 1) == (name + "=")) {
cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
break;
}
}
}
return cookieValue;
}