Subdomain Cookies and Localhost
So I have a site - we’ll call www.site1.com that sets a client side cookie named CookieName1 and I need a subdomain test.site1.com to be able to read that value. Using php’s standard setcookie() method I set the cookie on www by using:
setcookie( “CookieName1″, $CookieName1Value, $CookieExpDate, “/”, “.site1.com” );
This works, no problem. Now test.site1.com uses .NET to read in the value and do something. Pretty standard stuff here:
If Request.Cookies(“CookieName1″) IsNot Nothing Then
”DO SOMETHING
End If
Build > Debug, set a breakpoint on the if block, skips right over it. Huh? I make sure IE has the cookie, try again. Nope, Request.Cookies(”CookieName1″) is Nothing. Can’t be an IE thing can it? Run same scenerio in FireFox - same result. Then it dawns on me, I’m not running this under test.site1.com, I’m running this under localhost. Everything was working as expected, cookies can only be read by *.site1.com. So how am I going to test this thing on my local machine? I do have a sandbox, test1sandbox.site1.com, but what if I didn’t? A simple solution is to change the host file found at %SystemRoot%\system32\drivers\etc\ with:
127.0.0.1 localhost
127.0.0.1 test1.site1.com
Run another Debug, change the http://localhost to http://test1.site1.com and now I’m able to read cookies from *.site1.com. Nifty.
Written by Tim on May 22nd, 2007 with no comments.
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