I have tested this on 2 Twitter OAuth demo site, http://twitteroauth.appspot.com/ http://fourmargins.com/labs/twitter_oauth/
by using Firefox 3.5 and Internet Explorer 8 on Windows Vista 32bit Every time after I ignore (close without any action on the page) Twitter OAuth application authorization page (the page that has Allow and Deny button), I cannot load any page that using Twitter OAuth API including Twitter own login system. To describe in step-by-step, I open one of the above OAuth demo website, click on the link that will give the application an access to my twitter account, a browser redirect me to twitter page that require me to choose Allow or Deny, I choose to ignore it and close that page. Then I regret my action and try to open it again, I have encountered "The connection was reset" on Firefox 3.5 and "Internet Explorer cannot display the webpage" on IE, after I have clicked the same link. I don't know why but it seems "deleting all cookies" is an only resolution. This is reproducible every times on my machine. OAuth BUG?
