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Asked: 2026-05-23T13:35:00+00:00

i am trying to set a cookie as below. CookieSyncManager.createInstance(context); CookieManager cookieManager = CookieManager.getInstance();

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i am trying to set a cookie as below.

CookieSyncManager.createInstance(context);
CookieManager cookieManager = CookieManager.getInstance();
cookieManager.setCookie("http://wwww.mydomain.com",
                "mycookie=123"; Domain=.mydomain");
CookieSyncManager.getInstance().sync();

When i access a page from mydomain.com, the cookie can be retrieved. but when i try to set cookie using IP address, the page cannot retrieve the cookie.

1) is it because we can only set cookie using hostname?
2) why when i access a website using IP address, the website is still able to set and retrieve the cookie?

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1 Answer

  1. Editorial Team

    Its a domain name by specification:

    Domain=domain
    Optional. The Domain attribute specifies the domain for which the
    cookie is valid. An explicitly specified domain must always start
    with a dot.

    http://www.ietf.org/rfc/rfc2109.txt

    Android might extract domain and path from an URL, but the domain must be a fully-qualified domain name.

    Further, if you access via ip the following statement is relevant:

    Domain Selection The origin server’s
    fully-qualified host name must
    domain-match the Domain attribute of
    the cookie.

    The answer is yes though.

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