Information
Non-HTTP services' responses may be read via XHR as their response streams will be interpreted by Chrome as HTTP/0.9. This setting allows to enable HTTP/0.9 on ports other than 80 for HTTP and 443 for HTTPS.
Solution
To establish the recommended configuration via Group Policy, set the following UI path to Disabled:
Computer Configuration\Administrative Templates\Google\Google Chrome\Enable HTTP/0.9 support on non-default ports
Impact:
If this setting is disabled, HTTP/0.9 will be disabled on non-default ports 80/443.