UE-59488 FWebBrowserWindow::UnbindUObject of IOSPlatformWebBrowser.cpp is not implemented yet
#jira UEMOB-185
#jira UE-59488
#4.21
#iOS
#rb Jack.Porter
New methods (using WebKit, matching the Android implementation):
- Go back/forward
- HandlePageLoading (loading/didCommitNavigation, loaded/didFinishNavigation)
- HandleReceivedError (didFailNavigation)
- execute JS code
- controlling the client using JS commands (WKWebViewConfiguration & WKUserContentController):
- in Android we using shouldInterceptRequest to intercept a custom resource URL (JS: XMLHttpRequest.send, document.location)
- iOS will register handlers (JS: window.webkit.messageHandlers.<FMobileJSScripting::JSMessageHandler>.postMessage)
[CL 4343824 by Sorin Gradinaru in Dev-Mobile branch]