From d37b113d0d603ac93accf7ece18a2548dd77c7b4 Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Mon, 2 Jul 2018 17:20:22 +0300
Subject: [PATCH] retry on HTTP status 429 "Too Many Requests"

---
 background/update.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/background/update.js b/background/update.js
index 1a005152..3f35283d 100644
--- a/background/update.js
+++ b/background/update.js
@@ -105,8 +105,10 @@ global API_METHODS
     }
 
     function reportFailure(error) {
-      // retry once if the error is 503 Service Unavailable
-      if (error === 503 && !retrying.has(id)) {
+      if ((
+        error === 503 || // Service Unavailable
+        error === 429    // Too Many Requests
+      ) && !retrying.has(id)) {
         retrying.add(id);
         return new Promise(resolve => {
           setTimeout(() => {