I'm using Umbraco 4.5.2. I am making an Ajax call to a handler, that, for testing purposes, returns the logged in user name. I read this page (http://our.umbraco.org/wiki/how-tos/membership-providers) so I used:

System.Web.Security.Membership.GetUser()

Now, my problem: when I log in as User1, I get 'User1' back, which is correct. Then, I log out, and log in as User2. This time, my code returns 'User1' again.

Is there caching involved? When I restart my browser, I can log in as User2 and get 'User2' returned. But again, logging out and logging in as another user, will return 'User2' everytime.

On the same page I have the following macro:

<xsl:choose>

<xsl:when test="umbraco.library:IsLoggedOn() = true()">

You are logged in as 

<xsl:variable name="user" select="umbraco.library:GetCurrentMember()/@loginName"/>

"<xsl:value-of select="$user"/>"

</xsl:when>

<xsl:otherwise>

You are not logged in.

</xsl:otherwise>

</xsl:choose>

This always returns the correct user. Using the umbraco library in my C# code doesn't solve this by the way.

Anyone else having the same problem or know how to fix it?