How to load a local HTML file？

[daniel]

Might be due to the old WebView engine:

JUCE: juce::WebBrowserComponent::Options Class Reference

There are a few things to set in order to switch, but I am not an expert on windows.

Good luck

I guess, here the threads merge in your other topic:

How does webview2 work on JUCE 7.0.5?

You need to set JUCE_USE_WIN_WEBVIEW2 in the config flags for juce_gui_extra Make sure that the WebView2 runtime is installed on any computer that will run the application (details on how to do this can be found here) Use WebBrowserComponent::Options::withBackend to request the webview2 backend Ensure that the WebView2Loader.dll library is visible to your application at runtime - you can use WinWebView2::withDLLLocation to load this from a custom location, if the dll isn’t in a standard system …