From 50dd79c5953f3c34db162572dca6042a5175ffd2 Mon Sep 17 00:00:00 2001
From: kegsay <kegan@matrix.org>
Date: Thu, 13 Oct 2022 13:18:31 +0100
Subject: [PATCH] Check for AbortError, not any generic connection error, to
 avoid tightlooping (#2752)

---
 src/sliding-sync.ts | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/sliding-sync.ts b/src/sliding-sync.ts
index 2c42751a0..480ee818c 100644
--- a/src/sliding-sync.ts
+++ b/src/sliding-sync.ts
@@ -19,7 +19,6 @@ import { MatrixClient } from "./client";
 import { IRoomEvent, IStateEvent } from "./sync-accumulator";
 import { TypedEventEmitter } from "./models/typed-event-emitter";
 import { sleep, IDeferred, defer } from "./utils";
-import { ConnectionError } from "./http-api";
 
 // /sync requests allow you to set a timeout= but the request may continue
 // beyond that and wedge forever, so we need to track how long we are willing
@@ -852,7 +851,7 @@ export class SlidingSync extends TypedEventEmitter<SlidingSyncEvent, SlidingSync
                         await sleep(50); // in case the 400 was for something else; don't tightloop
                         continue;
                     } // else fallthrough to generic error handling
-                } else if (this.needsResend || err instanceof ConnectionError) {
+                } else if (this.needsResend || err.name === "AbortError") {
                     continue; // don't sleep as we caused this error by abort()ing the request.
                 }
                 logger.error(err);