I can help you with that.
The issue you are facing is most likely due to the Windows Runtime Access setting in the appxmanifest file. The Windows Runtime Access setting determines whether the app can access certain features of the Windows Runtime, such as the web browser.
In your case, you have set the Windows Runtime Access setting to "none". This means that the app cannot access the web browser. To fix the problem, you need to change the Windows Runtime Access setting to "full".
To do this, open the appxmanifest file in a text editor and locate the following line:
<uap:Rule Type="include" Match="https://assets.abc.com" WindowsRuntimeAccess="none"/>
Change the value of the WindowsRuntimeAccess attribute to "full". The line should now look like this:
<uap:Rule Type="include" Match="https://assets.abc.com" WindowsRuntimeAccess="full"/>