From 537bcf5eaff7d1f66baed866f0cb2d0877124db2 Mon Sep 17 00:00:00 2001
From: roytam1 <roytam@gmail.com>
Date: Tue, 9 Nov 2021 21:16:58 +0800
Subject: [PATCH] backport Bug 1729517 - Set up document correctly.
 r=freddyb,ckerschb a=RyanVM

---
 dom/xslt/base/txURIUtils.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dom/xslt/base/txURIUtils.cpp b/dom/xslt/base/txURIUtils.cpp
index bce2f8d0f3..885706fa39 100644
--- a/dom/xslt/base/txURIUtils.cpp
+++ b/dom/xslt/base/txURIUtils.cpp
@@ -74,6 +74,7 @@ URIUtils::ResetWithSource(nsIDocument *aNewDoc, nsINode *aSourceNode)
     aNewDoc->Reset(channel, loadGroup);
     aNewDoc->SetPrincipal(sourcePrincipal);
     aNewDoc->SetBaseURI(sourceDoc->GetDocBaseURI());
+    aNewDoc->SetSandboxFlags(sourceDoc->GetSandboxFlags());
 
     // Copy charset
     aNewDoc->SetDocumentCharacterSetSource(