When the following scenario occurs:
1) Using Internet Explorer 8 as web browser.
2) Accessing OWA through https like in, for example: https://casserver.corporation.com/owa
3) Enterprise Vault Web Application not configured to use https.
4) Clicking on the search archive button from OWA.
In this scenario, when the user clicks on the search archive button, will receive as a response a dialog box with the following message:
This is because IE 8 is trying to access an http resource (the enterprise vault search application), from a secure HTTPS page.
IE 8 interrupts the download and displays a confirmation dialog box when there is http content (mixed content) tried to be accessed from an https webpage.
In IE7 this caused not a major problem, as the user only had to click on the YES button to show the http resource but, in IE 8, the message that appears is somehow tricky and the user have to click the NO button if he really wants to see the http content.
Most of the users do not read correctly the message and click instinctively in the YES button, causing the http resource not loading and finishing with the perception that something it is not working in the Enterprise Vault search application when it is not the case.
There are 2 alternatives to resolve this:
1) Implement https for the Enterprise Vault Web Application. See related tech notes for information about how to achieve this.
2) Disable in IE8 the warning that appears when an http resource it is trying to be accessed from http.
For doing this, proceed as follows:
From Internet Explorer 8, click on the Tools --> Internet Options --> Security Tab
Click on Local intranet button and once selected click on the Custom Level button.
Scroll down until you find the Miscellaneous section and ensure that the radio button "Display mixed content" it is Enable.
This will prevent any warning message to display when an http resource it is being accessed from an https webpage.