spolicyStr, ok := spolicy.(string)
	if !ok {
		// Sub policy if set, should be a string reject
		// malformed/malicious requests.
		return
	}

	// Check if policy is parseable.
	subPolicy, err := policy.ParseConfig(bytes.NewReader([]byte(spolicyStr)))
	if err != nil {
		// Log any error in input session policy config.
		iamLogIf(GlobalContext, err)
		return
	}