From 78b8b4bddd98c9d2904678fc78a472d7dbc7bb95 Mon Sep 17 00:00:00 2001
From: Gabriel Grant <g@briel.ca>
Date: Wed, 16 Aug 2017 11:08:57 -0700
Subject: [PATCH] feat: special-case error events to serialize message field

---
 src/server/call.ts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/server/call.ts b/src/server/call.ts
index 1de3212..de62e2a 100644
--- a/src/server/call.ts
+++ b/src/server/call.ts
@@ -121,6 +121,15 @@ export class Call {
 
   private callEventHandler(eventId: string, isBin: boolean = false) {
     return (data: any) => {
+      if (eventId === 'error') {
+        // An error's message is not enumerable, so doesn't get included
+        // by JSON.stringify(). Copy error info to a new, serializable object
+        let enumerableError: any = {};
+        Object.getOwnPropertyNames(data).forEach(key => {
+          enumerableError[key] = data[key];
+        });
+        data = enumerableError;
+      }
       let callEvent: IGBCallEvent = {
         service_id: this.clientServiceId,
         call_id: this.clientId,