From e47b7902420082876e70b8053aef09fee54f9258 Mon Sep 17 00:00:00 2001
From: Rhiannon Morris <rhi@rhiannon.website>
Date: Wed, 18 Aug 2021 05:10:26 +0200
Subject: [PATCH] check fragment is the right form before using it as filters

---
 script/gallery.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/script/gallery.js b/script/gallery.js
index 47da313..4a38eb6 100644
--- a/script/gallery.js
+++ b/script/gallery.js
@@ -100,8 +100,11 @@ function useFragment() {
     clearForm();
   } else {
     let set = new Set(frag.split(';'));
-    allBoxes.forEach(b => b.checked = set.has(b.id));
-    document.getElementById('filters-details').open = true;
+    if (new Array(...set).every(x => /^(require|exclude)_/.test(x))) {
+      allBoxes.forEach(b => b.checked = set.has(b.id));
+      let details = document.getElementById('filters-details');
+      details.open = !set.has('hide_filters');
+    }
   }
 
   updateItems();