Sessions w/CFWheels not sticking

I am having difficulty having session values stick when I create them. The default value exists at all times. Below is my rudimentary login tool.

The compare function works fine, but when after the cflock and redirect, session.userId and session.isLoggedIn are still 0 and false, respectively.

config/app.cfm

<cfset this.name = "xxx">
<cfset this.sessionManagement = true />
<cfset this.sessionTimeout= createtimespan(0,2,0,0) />
<cfset this.setClientCookies = false />
<cfset this.datasource = "xxx" />

events/onRequestStart.cfc

<cfscript>
    if ( !StructKeyExists(session, "userId") ) {
        session.userId = 0;
        session.isloggedIn = false;
    }
</cfscript>

controllers/admin.cfc

<cfcomponent extends="Controller">
    <cffunction name="init">

    </cffunction>

    <cffunction name="login">

    </cffunction>

    <cffunction name="main">

    </cffunction>

    <cffunction name="login_proc">
        <cfset local.userName = "xxx" />
        <cfset local.password = "yyy" />

        <cfif isPost() and StructKeyExists(params, "username")>
            <cfif compare(params.username, local.username) eq 0 AND compare(params.password, local.password) eq 0>

                <cflock scope="Session" type="exclusive" timeout="3">
                  <cfset session.userId = local.userName />
                  <cfset session.isLoggedIn = true />
                </cflock>

                <cfset redirectTo(action="main")>
            <cfelse>
                <cfset
                    flashInsert(
                        error_msg="Incorrect login."
                )>
                <cfset redirectTo(action="login")>
            </cfif>
        <cfelse>
            <cfset redirectTo(action="login")>
        </cfif>
    </cffunction>
</cfcomponent>

views/admin/login.cfm

<cfform action="/-rootdir-/index.cfm/admin/login_proc" method="post">
        <p>
            <label for="login">Username</label>
            <cfinput type="text" name="username" size="20" required="yes" message="Enter your username" autofocus />
        </p>
        <p>
            <label for="password">Password</label>
            <cfinput type="password" name="password" size="20" required="yes" message="Enter your password" />
        </p>

        <input type="submit" name="login" value="Go" />
    </cfform>

Solution

It's this line in your config/app.cfm causing the trouble:

<cfset this.setClientCookies = false />

With setClientCookies set the way you have it, cfid, cftoken, jsessionid, etc. cookies are not being passed to the client, and ColdFusion has no information about the client's session after the redirect happens.

If you absolutely must have this setting, then you need to pass cfid and cftoken in all of your redirects and links.

<cfset redirectTo(action="main", addToken=true)>

<!--- Can't use linkTo anymore unless you override `urlFor` in the controller to use ColdFusion's built-in UrlSessionFormat() function --->
<a href="#UrlSessionFormat(urlFor(action='main'))#>My link</a>

I doubt you want this behavior though.