{"ScriptPreparationCode":"var iframe = document.createElement(\u0022iframe\u0022);\r\niframe.src = \u0022about:blank\u0022;\r\ndocument.documentElement.appendChild(iframe);\r\nvar _window = iframe.contentWindow;\r\nvar iframeSplit = _window.String.prototype.split;\r\nvar split = String.prototype.split;\r\ndocument.documentElement.removeChild(iframe);","TestCases":[{"Name":"Native","Code":"split.call(\u0022a_random_string_test\u0022, \u0022\u0022);","IsDeferred":false},{"Name":"Iframe","Code":"iframeSplit.call(\u0022a_random_string_test\u0022, \u0022\u0022);\r\n","IsDeferred":false}]}