Can't compile SpeechSynthesis Error

Suddenly I’m faced with this error:

C:\HaxeToolkit\haxe\std/js/html/Window.hx:315: characters 37-52 : Type not found : SpeechSynthesis

Should I reinstall haxe or there is a simpler solution?

Resolved by copy this file from git to local haxelib directory C:\HaxeToolkit\haxe\std/js/html/