Proxy Settings when using OMS Agent VM Extension via ARM template

Vinoth_Azure It's really cool to get the proxyUri settings in ARM. It works for me on Windows but when I try it with linux version (type = "OmsAgentForLinux") it always fail with this error. Do you know if this parameter is supported on Linux version of the Microsoft.EnterpriseCloud.Monitoring extension?

"code": "VMExtensionProvisioningError",
"message": "VM has reported a failure when processing extension 'LogAnalytics-Agent-Extension'. Error message:
\"Enable failed with exit code 53 Installation failed due to incorrect workspace key. Please check if the workspace
key is correct. For details, check logs in
/var/log/azure/Microsoft.EnterpriseCloud.Monitoring.OmsAgentForLinux/extension.log\"\r\n\r\nMore information on
troubleshooting is available at https://aka.ms/VMExtensionOMSAgentLinuxTroubleshoot "