From 52d02ac527c3e3930e0b82fc8c4e0c348fa31625 Mon Sep 17 00:00:00 2001
From: Boris Zbarsky <bzbarsky@mit.edu>
Date: Tue, 13 Aug 2019 21:00:31 +0000
Subject: [PATCH] Bug 1573590.  Make sure we're in the right compartment before
 serializing our stack in worker error reporting.  r=bhackett

Nothing guarantees that the current compartment of aCx matches the compartment
where the exception was thrown.

Differential Revision: https://phabricator.services.mozilla.com/D41791

--HG--
extra : moz-landing-system : lando
---
 dom/workers/WorkerPrivate.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dom/workers/WorkerPrivate.cpp b/dom/workers/WorkerPrivate.cpp
index 8db98a591592..50fad60b2546 100644
--- a/dom/workers/WorkerPrivate.cpp
+++ b/dom/workers/WorkerPrivate.cpp
@@ -4134,6 +4134,7 @@ void WorkerPrivate::ReportError(JSContext* aCx,
                                           &stackGlobal);
 
   if (stack) {
+    JSAutoRealm ar(aCx, stackGlobal);
     report->SerializeWorkerStack(aCx, this, stack);
   }