diff --git a/Required-Browser-Features.md b/Required-Browser-Features.md
index 45df41e..0e0627e 100644
--- a/Required-Browser-Features.md
+++ b/Required-Browser-Features.md
@@ -121,6 +121,10 @@ if the browser does not support it. This is important for output of the error me
 The `console.log` and `.error` functions will be replaced, if the browser does not allow to use
 the bind method with these functions.
 
+## <a id="apply-typed-array"></a>Function.prototype.apply accepts typed array
+
+The core code relies on the `Function.prototype.apply' method to accept the typed array as the second argument.
+No emulation is provided in browsers that do not support it.
 
 ## <a id="navigator-language"></a>navigator.language is present