def mark_fail(self, msg):
        self._complete(self.STATUS_FAIL, msg[:255])
        self.save()
Creates a new page within the har file. If no har file has been started
dataset/ETHPy150Open mozilla/kitsune/kitsune/search/models.py/Record.mark_fail--crossover with--dataset/ETHPy150Open edx/bok-choy/bok_choy/performance.py/HarCapturer.add_page