UAuth Login Popup Flow Bypasses Domain Input Due to some Cache

[KindKang]

Experiencing an issue with the UAuth login popup flow. Here's what's happening:

1. When calling uauth.loginWithPopup(), the popup window opens https://identity.unstoppabledomains.com/login/selectDomain.
   However, I never get the opportunity to actually input the domain name. (it is empty in the input box)
   There is no {"domain":"xx.unstoppable"} request body

2. The selectDomain flow automatically proceeds to https://identity.unstoppabledomains.com/auth with a pre-selected domain, bypassing the domain input step.

3. In auth page, even clicking 'Connect with a different domain', although it briefly go back to the selectDomain page, it automatically redirects again.

This appears to be a caching issue where previous login credentials are persisting. The login flow seems to be using cached domain information even after logout, and the 'Connect with a different domain' option isn't clearing these cached credentials properly.

The cached domain is in the html returned by /login/selectDomain endpoint

Current Workaround:

Manually clearing the browser cache for identity.unstoppabledomains.com resolves the issue.

Suggested Improvements:

1. After loginout, the corresponding brower data should be removed

2. The selectDomain endpoint should not automatically proceed without a valid {"domain":"xxx.unstoppable"} parameter

3. The "Connect with a different domain" option should clear relevant cache/cookies to ensure a fresh domain selection