Fix quirks mode check

davidjbradshaw · Feb 11, 2025 · 5d384c7 · 5d384c7
1 parent be92858
commit 5d384c7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/packages/child/index.js b/packages/child/index.js
@@ -198,7 +198,7 @@ function iframeResizerChild() {
   }
 
   function checkQuirksMode() {
-    if (document.compatMode === 'BackCompat') return
+    if (document.compatMode !== 'BackCompat') return
 
     advise(
       `<rb>Quirks Mode Detected</>