From 37d7a0aa791a4666ca405b11d0d8bdb199222e50 Mon Sep 17 00:00:00 2001
From: Damien Arrachequesne <damien.arrachequesne@gmail.com>
Date: Fri, 3 Feb 2023 11:58:36 +0100
Subject: [PATCH] fix(typings): do not expose browser-specific types

Related:

- https://github.com/socketio/socket.io-client/issues/1561
- https://github.com/socketio/engine.io-client/commit/b9252e207413a850db7e4f0f0ef7dd2ef0ed26da
---
 lib/transport.ts          | 2 +-
 lib/transports/polling.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/transport.ts b/lib/transport.ts
index 30c49caa1..2894f96f2 100644
--- a/lib/transport.ts
+++ b/lib/transport.ts
@@ -21,7 +21,7 @@ class TransportError extends Error {
 
 export interface CloseDetails {
   description: string;
-  context?: CloseEvent | XMLHttpRequest;
+  context?: unknown; // context should be typed as CloseEvent | XMLHttpRequest, but these types are not available on non-browser platforms
 }
 
 interface TransportReservedEvents {
diff --git a/lib/transports/polling.ts b/lib/transports/polling.ts
index 512ecf960..bdd7e442b 100644
--- a/lib/transports/polling.ts
+++ b/lib/transports/polling.ts
@@ -292,7 +292,7 @@ export class Polling extends Transport {
 interface RequestReservedEvents {
   success: () => void;
   data: (data: RawData) => void;
-  error: (err: number | Error, context: XMLHttpRequest) => void;
+  error: (err: number | Error, context: unknown) => void; // context should be typed as XMLHttpRequest, but this type is not available on non-browser platforms
 }
 
 export class Request extends Emitter<{}, {}, RequestReservedEvents> {