Windows app certification fails

Bug description: An app containing react-native-webview fails the Microsoft Store certification with an Unsupported APIs error Here is the detail of the error :

API _CxxThrowException in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __C_specific_handler in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __std_exception_copy in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __std_exception_destroy in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __std_terminate in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __std_type_info_destroy_list in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API _purecall in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API memcpy in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API memmove in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API memset in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API wcsrchr in vcruntime140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?_Xlength_error@std@@YAXPEBD@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?_Xout_of_range@std@@YAXPEBD@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrAssign@@YAXPEAXPEBX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrCopy@@YAXPEAXPEBX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrCopyException@@YAXPEAXPEBX1@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrCreate@@YAXPEAX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrCurrentException@@YAXPEAX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrDestroy@@YAXPEAX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API ?__ExceptionPtrRethrow@@YAXPEBX@Z in msvcp140.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.
API __CxxFrameHandler4 in vcruntime140_1.dll is not supported for this application type. Microsoft.Web.WebView2.Core.dll calls this API.

Note that this only happens on the store. The app passes the local WACK (windows app certification kit).

Environment:

• OS: Windows 11
• react-native version: 0.68.2
• react-native-windows version: 0.68.5
• react-native-webview version: 11.18.2

[giregk]

I’ve pinned the problem. It happens with version 2.8.0-prerelease.210927001 for WinUI. (NB: it also happens with version 2.8.0-prerelease.22something)

After I reverted to specifying <WinUI2xVersion>2.7.1</WinUI2xVersion> in my project’s ExperimentalFeatures.props, I was able to pass the certification (without react-native-webview).

Since react-native-webview cannot be built with this version of WinUI2xVersion, I managed to pass the certification with react-native-webview by

• specifying <WinUI2xVersion>2.7.1</WinUI2xVersion> in my project’s ExperimentalFeatures.props as well as in react-native-webview’s ExperimentalFeatures.props.
• specifying <package id="Microsoft.UI.Xaml" version="2.7.1" targetFramework="native" /> in react-native-webview’s packages.config
• manually deleting all webview2 related code in react-native-webview

So essentially, this means that Microsoft.UI.Xaml 2.8.0 is not yet ready for app store certification.

[chiaramooney]

Thanks @giregk for the info! I’m going to close out this issue since it isn’t specific to react-native-webview, but would be good to track this issue in the core react-native-windows repo to make sure we validate the scenario when we move to WinUI 2.8, if you have a change to file issue there.

Note currently the setup in the webview module is that once you update to v0.68 for RNW you will need to use WinUI2.8 pre-rerelease or greater. We will be making an update soon so that developers can option into using WinUI2.8prerelease for v0.68+.

Another note https://github.com/microsoft/react-native-gallery is an RNW app that is currently live in the store using WinUI 2.8.0-prerelease.210927001 and RNW v0.68.0. Curious why yours was unable to pass store validation.