I am having an issue with clients behind a proxy and Windows Integrated authentication on IIS 7.5 - as far as I know this was never an issue when the site was on IIS 6.
Essentially, their credentials are not passing for resources in _layouts or _themes and they are repeatedly prompted. The IIS log file never shows their credentials for these requests (shows a 401 status), but it does show for the aspx pages (with
a 200 status).
When accessing without the proxy, everything is good - so I know it's not an authorization issue.
Why would these resource folders behave differently? Has anyone else seen this? I know there are issues with WIA through a proxy but why did IIS 6 not have a problem? Google did not turn up much ...
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