[OpenID] Automating the user's selection of OP

Andrew Arnott andrewarnott at gmail.com
Mon Apr 20 11:28:31 UTC 2009

That makes sense.  I knew it was a different although the idea is similar.
User agents don't let you make cross-site HTTP calls however, which may
block the implementation of your idea.  My control works with a concert of
hidden iframes and coordinated redirects between the RP and OP.  But I think
you can't rely for any redirects from an OP doing what you're suggesting, so
any iframe you create will just sit there, and since it's a cross-site
iframe your javascript will never get any information back from it,
including the HTTP status code I believe.

Don't let me stop you from trying, but I just will be surprised if it will

Didn't you mention (or discuss on a thread) sometime back the idea of
emitting links to OPs using javascript, then sniffing whether they were
"visited" links or not in order to see which OPs the user has been to and
thereby guess which OPs are most effective to display to the user?
Andrew Arnott
"I [may] not agree with what you have to say, but I'll defend to the death
your right to say it." - Voltaire

On Mon, Apr 20, 2009 at 4:17 AM, SitG Admin <sysadmin at shadowsinthegarden.com
> wrote:

> You may be interested in my OpenIdAjaxTextBox sample, which has a similar
>> idea.  As soon as you type in an identifier,
> I was hoping to prompt the user slightly before that; if we assume that
> most users (a very high percentage, as adoption picks up and actual "users"
> do not consist mainly of us technically aware individuals) have an account
> at a major OP, we (RP's) can pre-load a list of OP's to check for. This
> would also be an opportunity to preferentially check for OP's we would like
> the user to log in with.
> -Shade
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