From 454cf1fb26b6c4ebde797ac34049d581aa2d0384 Mon Sep 17 00:00:00 2001
From: Daniel Imms <tyriar@tyriar.com>
Date: Fri, 10 Jul 2020 12:13:26 -0700
Subject: [PATCH] Indicate non-passive scroll events for viewport

Fixes #3004
---
 src/browser/Terminal.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/browser/Terminal.ts b/src/browser/Terminal.ts
index bf94fd44..3f72bfef 100644
--- a/src/browser/Terminal.ts
+++ b/src/browser/Terminal.ts
@@ -778,7 +778,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
       if (!this.viewport!.onWheel(ev)) {
         return this.cancel(ev);
       }
-    }, { passive: true }));
+    }, { passive: false }));
 
     this.register(addDisposableDomListener(el, 'touchstart', (ev: TouchEvent) => {
       if (this._coreMouseService.areMouseEventsActive) return;
@@ -791,7 +791,7 @@ export class Terminal extends CoreTerminal implements ITerminal {
       if (!this.viewport!.onTouchMove(ev)) {
         return this.cancel(ev);
       }
-    }, { passive: true }));
+    }, { passive: false }));
   }