catch (Exception ex) when (ex is not NavigationException)
{
   Logger.LogError(ex, "Login failure");
   ErrorMessage = "Something went wrong";
}

catch (Exception ex) when (ex is not NavigationException)
{
   Logger.LogError(ex, "Login failure");
   ErrorMessage = "Something went wrong";
}

catch (NavigationException)
{
  throw;
}

catch (NavigationException)
{
  throw;
}

Regex.Replace(url, "[^A-Z0-9]", match => Replacements.GetValueOrDefault(match.Value) ?? match.Value)

Regex.Replace(url, "[^A-Z0-9]", match => Replacements.GetValueOrDefault(match.Value) ?? match.Value)