img tag source loading - stuck in pending network status

For reference - for a local folder index.html source in the webview2 control.
The img sources were coded something like:

<img src="../user/items/image1.png"/>

The network requests for img source would sit in 'Pending' for a long time, and then all calls for resources after about 10-20 seconds would load fine.

The resolution was to immediately map a virtual host name to the local folder after EnsureCoreWebView2Async and use proper address source.

await AppWebView.EnsureCoreWebView2Async(null);
AppWebView.CoreWebView2.SetVirtualHostNameToFolderMapping("SLG.user", slg.appPath + "user/items/", CoreWebView2HostResourceAccessKind.DenyCors);

<img src="https://SLG.user/image1.png"/>

The pending network status no longer occurs and images load immediately. I assume some initial handshake/connection for the control to the actual local folder path was taking some time. Whether this is a bug or not, I can't be sure - it is likely better practice to set up the virtual host name anyway.

AB#32524620

Start with a local-folder index.html in a WebView2 control and reproduce the relative image source behavior described in the issue. Compare loading with the virtual host mapping and HTTPS image source shown in the report; done means determining whether the pending requests indicate a WebView2 bug or documenting the required setup and expected behavior.