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.
Google Chrome 78.0.x (October 2019)
Microsoft Edge Chromium 78.0.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 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 version 78.0.x of Google Chrome (chrome.exe) and 78.0.x of Microsoft Edge Chromium, Microsoft's Code Integrity feature is enabled. SEP Application Control technology is not compatible with this feature in Chrome/Chromium.
As of October 29th, 2019 Google has disabled CodeIntegrityRenderer for Chrome 78.x due to conflicts with multiple vendors.
On November 19th, 2019 Application Control definitions were released to address the issue for Windows Server 2016 and Windows 10 RS1 devices already on SEP 14.2 or later. This will prevent the issue from occurring once CodeIntegrityRenderer is enabled again. Operating Systems other than Windows Server 2016 or Windows 10 RS1, SEP can be upgraded to 14.2 or later to address the incompatibility as well. Note: The sequence number is 191025252
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: