From de1b50053f7285d2170478a94a6936beb5c2fa0b Mon Sep 17 00:00:00 2001
From: Cameron Kaiser <classilla@floodgap.com>
Date: Sun, 25 Sep 2022 18:59:02 -0700
Subject: [PATCH] #651: I give up, going back to previous code for M1757604

---
 modules/libjar/nsJARChannel.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/libjar/nsJARChannel.cpp b/modules/libjar/nsJARChannel.cpp
index b34db6d1c..dee2863d7 100644
--- a/modules/libjar/nsJARChannel.cpp
+++ b/modules/libjar/nsJARChannel.cpp
@@ -752,7 +752,7 @@ nsJARChannel::GetContentType(nsACString &aResult)
 {
     // If the Jar file has not been open yet,
     // We return application/x-unknown-content-type
-    if (!mOpened && mContentType.IsEmpty()) {
+    if (!mOpened || mContentType.IsEmpty()) {
       aResult.Assign(UNKNOWN_CONTENT_TYPE);
       return NS_OK;
     }