From e0a24e6d4f43a5f240f4c389e57a23a7a32f84ab Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Mon, 30 Apr 2018 23:52:21 +0200
Subject: Bug 1343279 - Use SystemPrincipal when loading canvasToBlobURL

---
 browser/base/content/nsContextMenu.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'browser/base')

diff --git a/browser/base/content/nsContextMenu.js b/browser/base/content/nsContextMenu.js
index ddf695202..cd93a803c 100644
--- a/browser/base/content/nsContextMenu.js
+++ b/browser/base/content/nsContextMenu.js
@@ -1147,10 +1147,12 @@ nsContextMenu.prototype = {
   // Change current window to the URL of the image, video, or audio.
   viewMedia: function(e) {
     let referrerURI = gContextMenuContentData.documentURIObject;
+    let systemPrincipal = Services.scriptSecurityManager.getSystemPrincipal();
     if (this.onCanvas) {
       this._canvasToBlobURL(this.target).then(function(blobURL) {
         openUILink(blobURL, e, { disallowInheritPrincipal: true,
-                                 referrerURI: referrerURI });
+                                 referrerURI: referrerURI,
+                                 originPrincipal: systemPrincipal});
       }, Cu.reportError);
     }
     else {
-- 
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