fix: fixed logger issue

README.md

@@ -661,6 +661,8 @@ If you are provisioning servers after IPMI/VPN access, then you may need to take
 
    > Replace `IPV4_GOES_HERE` with IPv4 address, `IPV6_GOES_HERE` with IPv6 address, `IPV6_GATEWAY` with IPv6 gateway, and `IPV4_GATEWAY` with IPV4 gateway:
 
+   > For a comparison of `802.3ad` and other parameter mode values such as `balance-rr`, [please see this article on ServerFault](https://serverfault.com/a/481271).
+
    ```sh
    # This is the network config written by 'subiquity'
    network:
@@ -680,7 +682,7 @@ If you are provisioning servers after IPMI/VPN access, then you may need to take
            - 2606:4700:4700::1001
            search: []
          parameters:
-           mode: balance-rr
+           mode: 802.3ad
          routes:
          - to: ::/0
            via: IPV6_GATEWAY

helpers/logger.js

@@ -36,7 +36,7 @@ const silentSymbol = Symbol.for('axe.silent');
 const connectionNameSymbol = Symbol.for('connection.name');
 
 // wrapper for browser condition
-const hasMixin = !_.isEmpty(mongoose) && _ && _.mixin;
+const hasMixin = mongoose && _ && _.mixin;
 
 if (hasMixin) {
   // <https://stackoverflow.com/a/41978063>
@@ -158,7 +158,7 @@ async function hook(err, message, meta) {
   if (err && err.message === 'read ECONNRESET') return;
 
   // wrapper for non-browser condition
-  if (!_.isEmpty(mongoose)) {
+  if (mongoose) {
     // if it was SSL/TLS/socket error then ignore it
     if (isTLSError(err) || isSSLError(err) || isSocketError(err)) return;