code: protected boolean isAzureAppService(HttpServletRequest request)
  	{
  		if (_isAzureAppService != null)
  			return _isAzureAppService.booleanValue();
  
  		_isAzureAppService = (SystemUtils.IS_OS_WINDOWS && System.getenv("WEBSITE_SITE_NAME") != null);
  
  		return _isAzureAppService.booleanValue();
  	}
docs: Determines whether this code is running in Azure App Service; this controls whether we will enable Azure App Service
  specific hacks to fix some ugly Azure/Tomcat issues.
  
  @param request
  
  @return