diff --git a/internal/ui/ui_js.go b/internal/ui/ui_js.go
index c757602c0..4fd0163d6 100644
--- a/internal/ui/ui_js.go
+++ b/internal/ui/ui_js.go
@@ -484,11 +484,11 @@ func init() {
 		return nil
 	}))
 	document.Call("addEventListener", "fullscreenerror", js.FuncOf(func(this js.Value, args []js.Value) interface{} {
-		js.Global().Get("console").Call("error", "fullscreenerror event is fired. 'sandbox=\"fullscreen\"' might be required at an iframe. This function on browsers must be called as a result of a gestural interaction or orientation change.")
+		js.Global().Get("console").Call("error", "fullscreenerror event is fired. 'allow=\"fullscreen\"' or 'allowfullscreen' might be required at an iframe. This function on browsers must be called as a result of a gestural interaction or orientation change.")
 		return nil
 	}))
 	document.Call("addEventListener", "webkitfullscreenerror", js.FuncOf(func(this js.Value, args []js.Value) interface{} {
-		js.Global().Get("console").Call("error", "webkitfullscreenerror event is fired. 'sandbox=\"fullscreen\"' might be required at an iframe. This function on browsers must be called as a result of a gestural interaction or orientation change.")
+		js.Global().Get("console").Call("error", "webkitfullscreenerror event is fired. 'allow=\"fullscreen\"' or 'allowfullscreen' might be required at an iframe. This function on browsers must be called as a result of a gestural interaction or orientation change.")
 		return nil
 	}))
 }