iRule Help - Change URL URI

when HTTP_REQUEST {
    if { ( [string tolower [HTTP::host]] equals "example.com" ) and (  [string tolower [HTTP::uri]] equals "/nav" )} {
        HTTP::uri /help
    }
}

I tried the above and it didn't work. I tried a few changes to it as well, such as /nav* and that doesn't seem to make a difference. I'm not sure what I might be doing wrong or why it doesn't like it? If it makes a difference, application is ServiceNow

try policy for same

Hi nkroon,

Can you try these iRules?

Modify uri without redirect:

when HTTP_REQUEST {
	if { ( [string tolower [HTTP::host]] equals "example.com") or ( [string tolower [HTTP::host]] equals "www.example.com") } {
		if { [string tolower [HTTP::uri]] equals "/nav" } {
			HTTP::uri "/help"
		}
	}
}

Redirect

when HTTP_REQUEST {
	if { ( [string tolower [HTTP::host]] equals "example.com") or ( [string tolower [HTTP::host]] equals "www.example.com") } {
		if { [string tolower [HTTP::uri]] equals "/nav" } {
			HTTP::redirect "http://www.example.com/help"
		}
	}
}

Both of them seemed to work, kinda. The first one created a weird refresh loop. The second one, the redirect, worked correctly however the issue I ran into now is it seems to break SSO. It appears that you have to go to the nav page first to complete SSO sign in, and from there it will redirect you to another URI, however the F5 doesn't seem to pick up on that or see it, as I've tried modifying the irules a bit more to see if I can redirect that portion, but it doesn't seem to see it.