From 78b3340d6a8be4f46e3460ee52a90609de982d04 Mon Sep 17 00:00:00 2001
From: Slava Leleka <v.leleka@adguard.com>
Date: Wed, 7 Feb 2024 21:26:32 +0200
Subject: [PATCH] add logging if no attr found

---
 src/scriptlets/set-attr.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/scriptlets/set-attr.js b/src/scriptlets/set-attr.js
index 3445ccfd..915a1318 100644
--- a/src/scriptlets/set-attr.js
+++ b/src/scriptlets/set-attr.js
@@ -144,6 +144,9 @@ export function setAttr(source, selector, attr, value = '') {
     if (shouldCopyValue) {
         attributeHandler = (elem, attr, value) => {
             const valueToCopy = elem.getAttribute(value.slice(1, -1));
+            if (valueToCopy === null) {
+                logMessage(source, `No element attribute found to copy value from: ${value}`);
+            }
             elem.setAttribute(attr, valueToCopy);
         };
     }