'Clear video url fields.'

def clear_fields(self):

    script = "\n                                $('{selector}')\n                                                .prop('disabled',    false)\n                                                .removeClass('is-disabled')\n                                                .val('')\n                                                .trigger('input');\n                                ".format(selector=CLASS_SELECTORS['url_inputs'])
    self.browser.execute_script(script)
    time.sleep(DELAY)
    self.wait_for_ajax()
