When launching Google Chrome version 78.0.x or later, the message "Aw Snap! Something went wrong while displaying this webpage." is present if any version of Symantec Endpoint Protection (SEP) is installed with the Application Control feature on Windows Server 2016 or Windows 10 RS1. This issue also affects Microsoft Edge Chromium version 78.0.x with an error message of "Page cannot be displayed".
Chrome and Chromium are also impacted when installed on any Operating System (OS) with a SEP version older than 14.2 RU2 MP1
Google Chrome 78.0.x (October 2019)
Google Chrome 79.0.x (December 2019)
Microsoft Edge Chromium 78.0.x
Microsoft Edge Chromium 79.0.x
Windows Server 2016 and Windows 10 RS1 with any version of SEP installed.
Any Windows OS with a SEP version older than 14.2 RU2 MP1 installed.
In the Google Chrome browser:
Aw Snap! Something went wrong while displaying this webpage.
In the Microsoft Edge Chromium browser:
Page Cannot be displayed.
In versions of Google Chrome (chrome.exe) and versions of Microsoft Edge Chromium, Microsoft's Code Integrity feature is enabled. SEP Application Control technology is not compatible with this feature in Chrome/Chromium.
Upgrade to Symantec Endpoint Protection 14.2 RU2 MP1 to address the incompatibility with Chrome on Windows 10 Creators Update, version 1703 or later and Windows Server 2019.
For the following Operating systems Symantec Endpoint Protection will require an update to provide Code Integrity support for Application Control:
Windows 10 Anniversary Update, version 1607
Windows 10 Enterprise 2016 LTSC
Windows Server 2016
This update is targeted for inclusion in 14.2 RU2 MP1. This document will be updated when support is available.
If upgrading SEP is not an option, or the OS is one of those listed above, the incompatibility can be worked around by adding an Application Control exception for Chrome (Chrome.exe) and/or Microsoft Edge Chromium (MSEdge.exe).
Alternative options also include running Chrome with Code Integrity disabled: