From 2c382a58d30ffe031dee25b3597e4a5aaa3fd87c Mon Sep 17 00:00:00 2001
From: Guillaume Gomez <guillaume1.gomez@gmail.com>
Date: Wed, 2 Apr 2025 11:10:37 +0200
Subject: [PATCH] Greatly speed up search index load

---
 src/renderer/html_handlebars/search.rs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/renderer/html_handlebars/search.rs b/src/renderer/html_handlebars/search.rs
index ffa104b3..fe2edd5b 100644
--- a/src/renderer/html_handlebars/search.rs
+++ b/src/renderer/html_handlebars/search.rs
@@ -66,7 +66,13 @@ pub fn create_files(
     if search_config.copy_js {
         static_files.add_builtin(
             "searchindex.js",
-            format!("Object.assign(window.search, {});", index).as_bytes(),
+            // To reduce the size of the generated JSON by preventing all `"` characters to be
+            // escaped, we instead surround the string with much less common `'` character.
+            format!(
+                "window.search = JSON.parse('{}');",
+                index.replace("\\", "\\\\").replace("'", "\\'")
+            )
+            .as_bytes(),
         );
         static_files.add_builtin("searcher.js", searcher::JS);
         static_files.add_builtin("mark.min.js", searcher::MARK_JS);