API Reference > imodeljs-frontend > IModelApp > WebViewerAppOpts WebViewerAppOpts Interface Beta Options for WebViewerApp.startup Properties Name Type Description iModelApp undefined | IModelAppOptions webViewerApp { authConfig?: BrowserAuthorizationClientConfiguration, routing?: RpcRoutingToken, rpcParams: BentleyCloudRpcParams } Defined in core/frontend/src/WebViewerApp.ts Line 19 Last Updated: 29 November, 2022