Issue with Session and Cookie in Internet Explorer for websites containing underscore

Question

Recently we have created few websites with underscore (contains under website name). --------> example (xyz_mnp.com)

Issue is: Every time a page request cookie and session resets. It works fine with other browser but facing issue in IE

I search lots of thread but didn't find any solution yet.

Any help guys. Thanks

The underscore in website name should not effect cookies. Cookie is set in in domain level. How do you know it resets the cookie in IE? — Sho, Jan 09 '14 at 06:16
There are lot of threads which suggest and my personal experience IE ignores cookies with domain containing underscores — Sks, Jan 09 '14 at 07:19

score 16 · Answer 1 · answered Jan 09 '14 at 22:45

Internet Explorer rejects all cookies with an underscore in the domain, because underscores are not allowed in DNS hostnames. This is a well-known limitation in IE, documented in http://blogs.msdn.com/b/ieinternals/archive/2009/08/20/wininet-ie-cookie-internals-faq.aspx

The workaround is to remove the underscore from the hostname.

1 Answers1