From f145e625e4ab2118c811ef4403c0939a1d30b5a7 Mon Sep 17 00:00:00 2001
From: hackademix
Date: Mon, 1 Apr 2019 19:12:20 +0200
Subject: Limit wrappedJSObject usages to compatible browsers.

---
 src/content/ftp.js              | 2 +-
 src/content/onScriptDisabled.js | 2 +-
 src/content/staticNS.js         | 2 +-
 src/lib/UA.js                   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/content/ftp.js b/src/content/ftp.js
index 73ef5e8..cb29f13 100644
--- a/src/content/ftp.js
+++ b/src/content/ftp.js
@@ -1,4 +1,4 @@
-(() => {
+if (UA.isMozilla) (() => {
   // see https://dxr.mozilla.org/mozilla-central/rev/d03b538b6b417ba892d0a92fd693945b741246e1/netwerk/streamconv/converters/nsIndexedToHTML.cpp#381
   'use strict';
   var gTable, gOrderBy, gTBody, gRows, gUI_showHidden;
diff --git a/src/content/onScriptDisabled.js b/src/content/onScriptDisabled.js
index c0d5899..6083466 100644
--- a/src/content/onScriptDisabled.js
+++ b/src/content/onScriptDisabled.js
@@ -15,7 +15,7 @@ function onScriptDisabled() {
   if (refresh) {
     let html = document.documentElement.outerHTML;
     window.addEventListener("load", e => {
-      let document = window.wrappedJSObject.document;
+      let document = window.wrappedJSObject ? window.wrappedJSObject.document : window.document;
       document.open();
       document.write(html);
       document.close();
diff --git a/src/content/staticNS.js b/src/content/staticNS.js
index e169087..3561162 100644
--- a/src/content/staticNS.js
+++ b/src/content/staticNS.js
@@ -65,7 +65,7 @@
           } catch (e) {
             error(e);
           }
-        } else if (window !== window.top) {
+        } else if (UA.isMozilla && window !== window.top) {
           // The cookie hack won't work for non-HTTP subframes (issue #48),
           // or the cookie might have been deleted in a race condition,
           // so here we try to check the parent
diff --git a/src/lib/UA.js b/src/lib/UA.js
index 1a1771a..438eaf6 100644
--- a/src/lib/UA.js
+++ b/src/lib/UA.js
@@ -1,5 +1,5 @@
 var UA = {
-  isMozilla: document.URL.startsWith("moz-"),
+  isMozilla: document.URL.startsWith("moz-") || typeof window.wrappedJSObject === "object",
 }
 
 if (!UA.isMozilla) {
-- 
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