react-native-webview-bridge for react-native-windows

[rozele]

No description provided.

[rozele]

After the initial investigation, I've found two options for communication from the WebView back to the native bridge, AddWebAllowedObject and window.external.notify.

There are limitations with both of these:

1. WebView.AddWebAllowedObject works only works when navigated from NavigateToString or when navigating to a ms-appx-web: URI, and I have to introduce an additional WinRT component library in order to use it.
2. window.external.notify only works when the URIs are whitelisted in the appxmanifest or from NavigateToString / ms-appx-web: URIs.

Currently, the most flexible is likely the ScriptNotify event and window.external.notify, with the caveat that the app needs to declare upfront what domains are supported (and it must use HTTPS).

[rozele]

I've reached out to the Web Platform team in Windows for further guidance on if we have any options for more general hooks in WebView.

[rozele]

Confirmed with Web Platforms team scenario to load JavaScript prior to page loading is not currently supported in UWP.