From 93dcae84d386e5f16659d1cd8fbba35582a3623f Mon Sep 17 00:00:00 2001
From: marwin <marwin@creamfresh.xyz>
Date: Thu, 19 Mar 2026 20:55:55 +0100
Subject: [PATCH] Prevent Firefox from opening dragged files outside drop zone

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 static/js/app.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/static/js/app.js b/static/js/app.js
index 522f763..e8f8d58 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -2199,6 +2199,13 @@ function bookFileSelected(input) {
 
 function initBookDropZone() {
   const zone = $('book-drop-zone');
+
+  // Prevent Firefox from opening dragged files when dropped outside the zone
+  document.addEventListener('dragover', e => e.preventDefault());
+  document.addEventListener('drop', e => {
+    if (!zone || !zone.contains(e.target)) e.preventDefault();
+  });
+
   if (!zone) return;
 
   zone.addEventListener('dragover', e => {