From 3881c4ca80d1b4b2f43be695438ecaf90ee4f86c Mon Sep 17 00:00:00 2001
From: Zibi Braniecki <zbraniecki@mozilla.com>
Date: Wed, 17 Nov 2021 23:31:45 +0000
Subject: [PATCH] Bug 1687118 - Bail early from
 DocumentL10n::TriggerInitialTranslation if mReady is not available.
 r=emilio,nordzilla

Differential Revision: https://phabricator.services.mozilla.com/D131253
---
 dom/l10n/DocumentL10n.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dom/l10n/DocumentL10n.cpp b/dom/l10n/DocumentL10n.cpp
index b5a5fd82a58e..c65f53c73aed 100644
--- a/dom/l10n/DocumentL10n.cpp
+++ b/dom/l10n/DocumentL10n.cpp
@@ -117,6 +117,13 @@ void DocumentL10n::TriggerInitialTranslation() {
   if (mState >= DocumentL10nState::InitialTranslationTriggered) {
     return;
   }
+  if (!mReady) {
+    // If we don't have `mReady` it means that we are in shutdown mode.
+    // See bug 1687118 for details.
+    InitialTranslationCompleted(false);
+    return;
+  }
+
   mInitialTranslationStart = mozilla::TimeStamp::Now();
 
   AutoAllowLegacyScriptExecution exemption;