From 8c539dabd6c6975deab2f8d8075d5744960106c4 Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Tue, 11 Apr 2017 16:12:18 +0300
Subject: [PATCH] prefs.set: enforce value type based on defaults

---
 prefs.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/prefs.js b/prefs.js
index 1d80488a..854c06d6 100644
--- a/prefs.js
+++ b/prefs.js
@@ -85,6 +85,19 @@ var prefs = new function Prefs() {
 
     set(key, value, {noBroadcast, noSync} = {}) {
       const oldValue = deepCopy(values[key]);
+      switch (typeof defaults[key]) {
+        case typeof value:
+          break;
+        case 'string':
+          value = String(value);
+          break;
+        case 'number':
+          value |= 0;
+          break;
+        case 'boolean':
+          value = value === true || value === 'true';
+          break;
+      }
       values[key] = value;
       defineReadonlyProperty(this.readOnlyValues, key, value);
       if (BG && BG != window) {