xWebApplication SSL Flags produce an error

[bswerdlen]

In my testing, whenever I try to apply SSL Flags to a web application I receive the following error:
Flags must be some combination of None, Ssl, SslNegotiateCert, SslRequireCert, Ssl128
+ CategoryInfo : NotSpecified: (:) [], CimException

When I run the code manually I can pinpoint the error at
Set-WebConfigurationProperty : Flags must be some combination of None, Ssl, SslNegotiateCert, SslRequireCert, Ssl128
At line:9 char:17

•             Set-WebConfigurationProperty @params
  

Reviewing the code being run it is currently configured as:
Write-Verbose -Message ($LocalizedData.VerboseSetTargetSslFlags -f $Name)
$params = @{
PSPath = 'MACHINE/WEBROOT/APPHOST'
Location = "${Website}/${Name}"
Filter = 'system.webServer/security/access'
Name = 'sslFlags'
Value = [string]$sslflags
}

            Set-WebConfigurationProperty @params

This appears to be happening because the sslFlags are expected to be separated by comma's, not spaces

When I change the code fragment above to the one below, everything works as expected:
Write-Verbose -Message ($LocalizedData.VerboseSetTargetSslFlags -f $Name)
$params = @{
PSPath = 'MACHINE/WEBROOT/APPHOST'
Location = "${Website}/${Name}"
Filter = 'system.webServer/security/access'
Name = 'sslFlags'
Value = [string]($sslflags -join)
}

            Set-WebConfigurationProperty @params

[bswerdlen]

whoops, the fix didn't copy across correctly
Write-Verbose -Message ($LocalizedData.VerboseSetTargetSslFlags -f $Name)
$params = @{
PSPath = 'MACHINE/WEBROOT/APPHOST'
Location = "${Website}/${Name}"
Filter = 'system.webServer/security/access'
Name = 'sslFlags'
Value = ($sslflags -join ',')
}

Set-WebConfigurationProperty @params