From 0d448f2baa5a4f8d264937af62b689e7eee6385c Mon Sep 17 00:00:00 2001
From: Cameron Kaiser <classilla@floodgap.com>
Date: Sat, 25 Jan 2020 14:47:55 -0800
Subject: [PATCH] closes #585: check parse-on-load is enabled first

---
 toolkit/components/reader/Readerable.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/toolkit/components/reader/Readerable.js b/toolkit/components/reader/Readerable.js
index aaca002f7..49e139823 100644
--- a/toolkit/components/reader/Readerable.js
+++ b/toolkit/components/reader/Readerable.js
@@ -60,6 +60,11 @@ var Readerable = {
     if (!(uri.schemeIs("http") || uri.schemeIs("https"))) {
       return false;
     }
+    if (!(this.isEnabledForParseOnLoad())) {
+      // TenFourFox issue 585
+      // Do this check here as well.
+      return false;
+    }
     if (!isBaseUri) {
       // Sadly, some high-profile pages have false positives, so bail early for those:
       let asciiHost = uri.asciiHost;