def get_loaded_extensions(self):
        return self._loaded_extensions
is_url filter detects a full URL.
dataset/ETHPy150Open datafolklabs/cement/cement/core/extension.py/CementExtensionHandler.get_loaded_extensions--crossover with--dataset/ETHPy150Open mozilla/moztrap/tests/view/templatetags/test_urls.py/FilterTest.test_is_url