isc_loginRequired and ip in URL

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Hi,

I am using the login required marker in my login page to enable relogin. The mechanism is working fine on my machine when using 'localhost' as URL. But as soon as I use the IP (e.g. 127.0.0.1) the script runs into an infinite loop.

I`d like to understand why you are checking the domain for an IP in the marker:

while (document.domain.indexOf(".") != -1)
...

Second question is what I did wrong since none of the breaks and also no exception is thrown which causes the script to run infinitely for IP in URL:

try {
	if (window.opener && window.opener.isc) break;
	if (window.top.isc) break;
	...

Thanks in advance