From 3c85a0d14ee279d529ab50afa3b375ec41880466 Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Sat, 28 Dec 2019 16:21:21 +0100
Subject: error handling

---
 src/webex/wxApi.ts | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/webex')

diff --git a/src/webex/wxApi.ts b/src/webex/wxApi.ts
index 1383ffbc3..bb5222a23 100644
--- a/src/webex/wxApi.ts
+++ b/src/webex/wxApi.ts
@@ -85,6 +85,10 @@ async function callBackend<T extends MessageType>(
 ): Promise<MessageMap[T]["response"]> {
   return new Promise<MessageMap[T]["response"]>((resolve, reject) => {
     chrome.runtime.sendMessage({ type, detail }, (resp) => {
+      if (chrome.runtime.lastError) {
+        console.log("Error calling backend");
+        reject(new Error(`Error contacting backend: chrome.runtime.lastError.message`));
+      }
       if (typeof resp === "object" && resp && resp.error) {
         console.warn("response error:", resp)
         const e = new WalletApiError(resp.error.message, resp.error);
-- 
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