def get_provider_name(driver):
    kls = driver.__class__.__name__
    for d, prop in DRIVERS.items():
        if prop[1] == kls:
            return d
    return None
If there is no Origin header in the request, the
dataset/ETHPy150Open mardix/flask-cloudy/flask_cloudy.py/get_provider_name--crossover with--dataset/ETHPy150Open corydolphin/flask-cors/tests/decorator/test_origins.py/OriginsTestCase.test_defaults_no_origin