Hm, I've contacted Nvidia support (I have problems with webdriver & EVGA GTX 970), and they said that:
>> The webdrivers are not officially released by NVIDIA.
>> The webdrivers would developed / written by Apple or third parties. We will not be able to comment on the functionality of these drivers as it is not officially provided by us.
What do you guys think, does it make sense at all to contact Nvidia support for bug reporting?