Supported web browsers

Cornerstone SBX supports the following web browsers and accompanying software.

Browser Operating System Java Runtime Environment (JRE)

Apple Safari 14.0.x or later

Mac OSX 10.6.x

Any JRE supported by your web browser that works with your SBX Publisher and third-party content

Microsoft Edge

Windows 10
Mozilla Firefox (latest available version) Any operating system that supports these browsers
Google Chrome (latest available version) Any operating system that supports these browsers
  • Cornerstone SBX does not support using the Back button in the browser to navigate to previously-visited pages. Due to differences in architecture, the Back button may work for some pages in some implementations, but this is not by design and we do not guarantee that it will work on any specific page of Cornerstone SBX due to variables in components. As such, we do not recommend using the Back button to navigate the product interface.
  • Cornerstone SBX does not support multiple browser tabs.
  • We recommend that users disable software that blocks pop-ups or ads while logged into Cornerstone SBX. Such software could prevent some menus and controls from functioning properly.
  • Adobe no longer supports the Flash Player, and therefore it is not supported by Cornerstone SBX.
  • For content requiring a Java Runtime Environment, you can use a Microsoft JVM or Sun JRE.

Cornerstone SBX Accessibility

Based on our testing and evaluation, Accessibility standards supported in Cornerstone SBX are best experienced in the following supportive technologies:

  • Chrome and JAWS (Job Access with Speech) running on the Windows operating system
  • Chrome and NVDA (Non-Visual Desktop Access) running on the Windows operating system
  • Safari and VoiceOver running on the macOS operating system
For more information, see Web accessibility.

TLS (Transport Layer Security) support status

As of 1st September 2017, Cornerstone SBX no longer supports the TLS (Transport Layer Security) 1.0 encryption. Ensure that the browser you are using supports a later version of TLS. To confirm which versions of TLS is enabled in your Web browser, you can visit: You can see a more comprehensive list of Web browsers and operating system combinations that support a later version of TLS here:

Microsoft Edge (Edge Legacy) no longer supported

With the December 2021 release, we have withdrawn support and testing of Microsoft Edge Legacy.

Internet Explorer 11 - End of Support

In order to keep up with browser security requirements and the latest software enhancements and to continue our focus on bringing you the most innovative technology, we no longer develop or test for Microsoft applications beyond their own support commitment. As of November 2021, we have withdrawn support and compatibility testing of Internet Explorer 11 (IE11). 

We strongly recommend that you partner with your IT teams to review your browser usage and encourage your team to upgrade to supported browsers.  

Configuring Internet Explorer for Content Delivery Network and Remote Content Server (workaround)

To ensure proper functioning of Content Delivery Network (CDN) and Remote Content Server (RCS) solutions, depending on your corporate IT policy, you may consider the following settings.

  1. In Internet Explorer, navigate to:
    • Internet Options > Security > Trusted sites > Sites, or
    • Internet Options > Security > Local Intranet > Sites > Advanced.
  2. Add the hostname of the following to the trusted sites list:
    • Full qualified domain name for RCS, or
    • Vanity or non-vanity Cornerstone SBX sites. For example, <servername> or <servername>
  3. Select the Enable Protected Mode option. This option is unchecked by default.
  4. Under the Custom security level:
    1. Enable Miscellaneous > Access data sources across domains.
    2. Enable ActiveX controls and plugins > Initialize and script ActiveX controls not marked as safe for scripting.
  5. If you are using Intranet Site as a Remote Content Server, then the following IE settings are recommended:
    1. In IE, navigate to Tools > Compatibility View Settings.
    2. Clear the Display Intranet Sites in Compatibility View option.
      Note: This option is checked by default.