SSL Certificate causes Internet Exporer error

From: John Lau (johnlau@olc.ubc.ca)
Date: 02/10/03


From: "John Lau" <johnlau@olc.ubc.ca>
Date: Sun, 9 Feb 2003 20:25:55 -0800


Hello,

I have a ASP.Net website that uses a Verisign SSL Certificate. When I set
the web server to require a secure channel, the following problem occurs.

I am able to get to the logon page. The page is using form based
authentication. When I enter a username and password, which is stored in
SQL Server, I get the message "This page contains both secure and nonsecure
items. Do you want to display the nonsecure items?". Both when I click on
the Yes button and the No button, I get an Internet Explorer error, which
asks me to send an error report to Microsoft. Then I get a second message
telling me there is an error in Internet Explorer, and then IE closes
itself. This happens even when I rename the main web page that I would have
been sent to if the error had not occurred, so I think the error happens
before I get to that page.

This error does not happen if I do not require a secure channel on the web
server. In this situation, entering the username and password sends me to
the main web page without a problem.

I can also avoid the error by changing a setting in Internet Explorer. In
Internet Explorer, select Tools, Options. Select the Security Tab. In the
Internet Settings, select the Default Level. Then select custom level. Under
Miscellaneous, set Display Mixed Contents to Disable. While this works, it
is impractical to ask all of my website users to disable the display of
mixed contents.

Also, I don't believe there are any nonsecure items in my web pages.

Is there something I can do in IIS or in the ASP.Net pages to fix this
problem?

Thanks, John



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