From 449ee64dac9426c55c36782628fcb20ebc277cc1 Mon Sep 17 00:00:00 2001
From: kuuuube <hexagonisalie@gmail.com>
Date: Sun, 29 Dec 2024 16:20:08 -0500
Subject: [PATCH] Catch sanitizer fails only when `new CSSStyleSheet()` is not
 available

---
 ext/js/core/utilities.js | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/ext/js/core/utilities.js b/ext/js/core/utilities.js
index 2e0386fee..3e50aa5b6 100644
--- a/ext/js/core/utilities.js
+++ b/ext/js/core/utilities.js
@@ -16,6 +16,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+import {log} from './log.js';
+
+
 /**
  * Converts any string into a form that can be passed into the RegExp constructor.
  * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions
@@ -268,7 +271,15 @@ export function promiseTimeout(delay) {
  * @returns {string}
  */
 export function sanitizeCSS(css) {
-    const sanitizer = new CSSStyleSheet();
+    let sanitizer;
+    // As of 2023/03/xx, all latest browser versions support this but some forks may lag behind
+    try {
+        sanitizer = new CSSStyleSheet();
+    } catch (e) {
+        log.log("Failed to sanitize dictionary styles")
+        log.warn(e);
+        return css;
+    }
     sanitizer.replaceSync(css);
     return Array.from(sanitizer.cssRules).map(rule => rule.cssText || '').join('\n');
 }