Forward options’ ssl.key even when non-enumerable

Author: charmander

Diff for: packages/pg/lib/connection.js

@@ -76,12 +76,18 @@ class Connection extends EventEmitter {
           return self.emit('error', new Error('There was an error establishing an SSL connection'))
       }
       var tls = require('tls')
-      const options = Object.assign(
-        {
-          socket: self.stream,
-        },
-        self.ssl
-      )
+      const options = {
+        socket: self.stream,
+      }
+
+      if (self.ssl !== true) {
+        Object.assign(options, self.ssl)
+
+        if ('key' in self.ssl) {
+          options.key = self.ssl.key
+        }
+      }
+
       if (net.isIP(host) === 0) {
         options.servername = host
       }