289800 2025-03-14 10:34:47 -0700 -webkit-backdrop-filter ignores css variables 2025-08-20 18:05:03 -0700 1 1 1 Unclassified WebKit CSS Other PC Linux NEW https://bugs.webkit.org/show_bug.cgi?id=263834 https://bugs.webkit.org/show_bug.cgi?id=289149 https://bugs.webkit.org/show_bug.cgi?id=297620 InRadar P2 Trivial --- 1 krabodyan webkit-unassigned koivisto ntim simon.fraser webkit-bug-importer webkit zalan oldest_to_newest 2103320 0 krabodyan 2025-03-14 10:34:47 -0700 --blur-size: 8px; --blur: blur(var(--blur-size)); -webkit-filter: var(--blur); /* works */ -webkit-filter: blur(var(--blur-size)); /* works */ -webkit-backdrop-filter: blur(8px); /* works */ -webkit-backdrop-filter: var(--blur); /* dont work */ -webkit-backdrop-filter: blur(var(--blur-size)); /* dont work */ in devtools -webkit-backdrop-filter is marked as applied and the value of variables is displayed, but there is no blur effect itself. -webkit-filter works properly with the same variables. Chromium, FIrefox, etc does not have this problem. Bug persist in Tauri 2.0 app built with webkitgtk_4_1 version 2.46.6 from nixos unstable Same app built on windows does not have this bug 2105035 1 webkit-bug-importer 2025-03-21 10:35:34 -0700 <rdar://problem/147591500>