Once installed, the plugin's main job is to enable a range of critical functions that wouldn't otherwise work in a standard web interface. If you're using the traditional plugin method, it's the engine that powers almost everything you do:
In practical terms, it allows your modern web browser to handle the heavy lifting of decoding high-definition H.264/H.265 video streams directly from your Dahua recorder. Without this plugin, attempting to log into your Dahua web interface (Web Service 3.0 or 4.0) on a modern browser will result in a blank screen, a constant loading loop, or an explicit error message prompting you to install a plugin. nacl web plugin dahua download full