Hikvision Plugin for Mac OS
All IP cameras require a plugin to display their video stream in a web browser, and normally this poses no issue. The browser and camera will prompt you automatically to download and install the plugin when you try and view a live feed or, if you already have done so, will ask your permission to run the plugin.
Safari on the other hand does not automatically do this when running on a Mac, and so...
[Mac] Hikvision Plugin for Mac OS