I have two different web applications: one is hosted on example.com and the other one is hosted on subdomain.example.com. I want to do so that if user enters one of them for the first time, a cookies banner appears and cookie preferences become same for both applications. In other words, I'd like to share cookies between example.com and subdomain.example.com and viceversa. I know that it should be possible to share cookies with websites hosted on subdomains. But the possibility of sharing cookies with the root domain from subdomain is still not clear to me.
So if users enters subdomain.example.com, can its cookies be sent to example.com? And viceversa?
Related
I have a cookie generated on a domain www.foo.bar that I need to share with another website located on www.something.com.bar.
Both sites are hosted on the same server.
Can I do that, and if yes, how?
Thanks.
No, you cannot share cookies across domains. The browser will only send a cookie to the domain (or sub-domains there of) that initially set it.
Read up on the Same origin policy / Cookie policy
I've run into a problem and I'm not sure how to go about fixing it. Here is the scenario.
A user visits my website (www.MyWebSite.com) and clicks on a button that puts a cookie on their computer. If I examined that cookie on their machine it would list the "host" as www.MyWebSite.com.
If the user then changes the URL in their browser to MyWebSite.com (without the www) reloads the page and then clicks on the button, a brand new cookie with the same name as the first cookie is created. The host of this cookie is MywebSite.com
Obviously this is not good - beside two cookies with the same name, only the cookie with the corresponding URL address is being read by my program.
Can I force cookies to be created with the www host and/or can I force the page to be www or what??? What and how is the best way to prevent this problem?
Cookie Creation using VB.net
Response.Cookies("AAA")("bbb") = strABC
Response.Cookies("AAA").Expires = DateTime.Now.AddDays(1)
Any help is greatly appreciated.
For (obvious) security reasons you can only read cookies that are set by the same domain the user requests. It doesn't matter if it is just a difference like in your example, or an entirely different domainname.
What you could do in this situation (it should improve your SEO as well), is redirect (301) all traffic from the site without www to the site with www.
If you're using IIS 7 or higher, you can find an example on how to do that with URL Rewrite here: http://weblogs.asp.net/owscott/archive/2009/11/27/iis-url-rewrite-rewriting-non-www-to-www.aspx
That's for security reasons. Any subdomain of a host is considered to be another realm, another world.
If you want your cookies to be sent to your subdomains too, then start the Host attribute of the cookie with a .. In other words, set your cookie for .MyWebSite.Com.
See Wikipedia for more information.
I have a Drupal 6.22 webpage. And I have a .de and a .at top level domain. Now the .at domain is an alias of .de. And I want:
I want to use the .at and the .de domain separately, exactly when anybody open my .at/indexp.php, not drop trough the .de domain.
I want to monitoring the incoming users.
So I want to hosting 2 site from 1 server, and I want to have a same login cookie, so anybody log in at .at, and navigating to .de, he keep logged in.
I know, the 2 page with same cantainment is killing the SEO, so thats a new more question.
I tried to solve the "Same Cookie" problem width $cookie_domain, but i can't. As I read, it's just working with 2 different server's 2 different sites.
Without some coding to authenticate the user between both sites, you can't do this.
Technically, browser won't send the cookies to other domains.
If the $cookie_domain is example.com, then www.example.com, extras.example.com will not get the cookies of example.com.
If it's .example.com, all example.com and its sub domains will get the cookies from browser. (note the leading dot before example.com)
You can't send example.com's cookies from another domain. That's why you are seeing you get redirected to Youtube and back to google when you login at a google domain.
You can point both domains to the same domain and it will work without a problem. But users will have to login twice in both sites.
Alternately you can send the user to the other site right after they login.
For an example, when user logs in at example.com, when the login is successful, send the user to the other domain immediately and the other site (example.net for instance) can do the same authentication and send user back to the origin site.
I don't know any module that does this though.
i have an asp.net website http://www.site.com. This web app is also running on http://subdomain1.site.com and http://subdomain2.site.com. Now i want to set authentication cookie in such a way that http://site.comand http://www.site.comshare authentication cookie but it should not be shared by http://subdomain1.site.com. similarly, http://www.domain1.site.com and http://domain1.site.com should share cookie but it should not be shared by http://domain2.site.com or http://www.domain2.site.com. How can i handle this with asp.net?
By default, cookies are associated with a specific domain. For example, if your site is www.contoso.com, the cookies you write are sent to the server when users request any page from that site. (This might not include cookies with a specific path value.) If your site has subdomains—for example, contoso.com, sales.contoso.com, and support.contoso.com—then you can associate cookies with a specific subdomain.
Response.Cookies["domain"].Domain = "support.contoso.com";
Normally a cookie set on contoso.com will be accessed by all subdomain. but if you want to limit sub domain for the cookie you should manually set domain property for each domain you want them to access.
Regards.
I ended up using different cookie names on different domains as described in this article
If I type http://example.com and login to my site and close my browser, re-open it and retype http://example.com then I am logged in.
However, when I type http://example.com, login, close the browser, re-open it, type http://www.example.com then I am NOT logged in.
I do not use ASP .NET authentication classes.
I run IIS 6 with both example.com and www.example.com URLs added to "Multiple identities for this web site" in IIS.
I do not wish the current behavior. Are there other things that can be affected because of this behavior?
Please make sure from your domain panel that it is referring to same IP Address and code.
I was having same issue and found that IP Address was different.
The problem is that you can't share cookies between example.com and www.example.com, due to a quirk in the cookie specification.
Instead, what you should do is pick one of the domains as your primary. Then, detect references to the other domain, and redirect users from there back to the primary. For example, you could choose www.example.com as the primary, and redirect references to example.com back to www.example.com.
That way, the authentication cookies will be present if the user tries to switch from one domain to another.