From 25256faaa4dd9592cf8299d051c81e47d059c607 Mon Sep 17 00:00:00 2001
From: Brenda Moreira <brendanatalia94@hotmail.com>
Date: Fri, 13 Nov 2020 15:10:36 +0000
Subject: [PATCH] Bug 1645071 - remove await from non-blocking listener.
 r=robwu

Differential Revision: https://phabricator.services.mozilla.com/D95125
---
 toolkit/components/extensions/webrequest/WebRequest.jsm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/toolkit/components/extensions/webrequest/WebRequest.jsm b/toolkit/components/extensions/webrequest/WebRequest.jsm
index 0ba6168c2672..7385178ce8cb 100644
--- a/toolkit/components/extensions/webrequest/WebRequest.jsm
+++ b/toolkit/components/extensions/webrequest/WebRequest.jsm
@@ -1060,7 +1060,7 @@ HttpObserverManager = {
       }
 
       if (kind === "onBeforeSendHeaders" && this.listeners.onSendHeaders.size) {
-        await this.runChannelListener(channel, "onSendHeaders");
+        this.runChannelListener(channel, "onSendHeaders");
       } else if (kind !== "onErrorOccurred") {
         channel.errorCheck();
       }