diff --git a/src/Sources/Sources.es6 b/src/Sources/Sources.es6
index e193377..0556fc4 100644
--- a/src/Sources/Sources.es6
+++ b/src/Sources/Sources.es6
@@ -204,7 +204,8 @@ export default class Sources extends Tool
     }
     _renderJson()
     {
-        this._renderHtml(this._jsonTpl());
+        // Using cache will keep binding json events to the same elements.
+        this._renderHtml(this._jsonTpl(), false);
 
         var val = this._data.val;
 
@@ -221,9 +222,9 @@ export default class Sources extends Tool
     {
         this._renderHtml(this._iframeTpl({src: this._data.val}));
     }
-    _renderHtml(html)
+    _renderHtml(html, cache = true)
     {
-        if (html === this._lastHtml) return;
+        if (cache && html === this._lastHtml) return;
         this._lastHtml = html;
         this._$el.html(html);
         // Need setTimeout to make it work
diff --git a/src/style/variable.scss b/src/style/variable.scss
index d08a56d..e45a5b1 100644
--- a/src/style/variable.scss
+++ b/src/style/variable.scss
@@ -8,7 +8,7 @@ $font-size-s: 12px;
 $font-size-l: 16px;
 
 $font-family: 'Helvetica Neue', Helvetica, Arial, sans-seri;
-$font-family-code: Consolas, "Liberation Mono", Menlo, Courier, monospace;
+$font-family-code: Monaco, MonoSpace;
 
 $anim-duration: .3s;