OriginWhitelist isn't working for deeplinks on Android

Bug description:

Adding the url scheme of the app in originWhitelist didn’t prevent the WebView to throw the loading page error. Having a deeplink inside a webview will always throw the following error on Android.

Encountered an error loading page {"canGoBack": true, "canGoForward": false, "code": -10, "description": "net::ERR_UNKNOWN_URL_SCHEME", "loading": false, "target": 163, "title": "Webpage not available", "url": "urbanair://whereTo"}

The workaround for this was to call Linking.openURL() and then return false inside onShouldStartLoadWithRequest when the request.url starts with the url scheme. The error will still show in the webview, but shortly after it opens the deeplink.

To Reproduce:

Add the apps deeplink inside the webview and then press it.

Expected behavior:

The webview should open the app directly through the deeplink.

Screenshots/Videos:

Environment:

• OS: MacOS
• OS version: 10.15.7 (19H2)
• react-native version: 0.63.3
• react-native-webview version: 10.9.3

[gabimoncha]

Don’t close

[a613]

how can all these fundamental critical bugs go ignored so long…