Intermittent HTTP 401 errors

Posted by forthrin on Server Fault See other posts from Server Fault or by forthrin
Published on 2013-11-08T09:09:31Z Indexed on 2013/11/08 10:01 UTC
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authentication

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http

I am using an Intranet solution which requires basic HTTP login.

However, there is an intermittent error which requires me to log in again, and then the server says "Forbidden" whether I give the correct login information or not.

To add insult to injury, Safari (and Chrome) seems to show the login dialog for every included resource in the HTML, and it's impossible to cancel this modal dialog sequence, so the whole browser is blocked until I've pressed Esc some 30 odd times.

After an hour, I may gain access again, without having really done anything.

My questions:

What could cause temporal 401 errors?
Why do the browsers show the login dialog 30 times per page load (assumedly for every included resource in the HTML from the same domain)?

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