gistfile1.m

    _pageJSContext[@"sendRequest"] = ^(NSString *eventName, NSString *payload) {

        __strong DNTBrowserViewController *strongSelf = weakSelf;
        
        DDLogDebug(@"CS -> KEY-OVERLAY: %@", eventName);
        
        // pass message from webview to keyboard overlay context
        if (strongSelf.keyboardOverlayWebViewController.overlayJSContext)
        {
            JSValue *jsOnRequest = strongSelf.keyboardOverlayWebViewController.overlayJSContext[@"onRequest"];
            [jsOnRequest callWithArguments:@[eventName, payload]];
        }
    };