Window.open( ) is not working when browser is inactive state

foreach (var item in Model.Items.OrderByDescending(a => a.PublishDate))
    {
       
                lebel = "New";
                bool ismatch = CommonFunctions.KeyWordsMatches(item, KeyWordsArray, LebelsArray, _settings.Value);
                if (ismatch)
                {
                    syndicationItemList.Add(item);
                     
                    window.open("@item.Links.FirstOrDefault().Uri", '_blank');
                
                }
            
            @rowCount -  @item.Title.Text.ToString()  "color: rgba(255, 0, 0, 1)">  @timeAgo
        
        <div id="demo_@rowCount" class="collapse">
            <p>Link: <a href="@item.Links.FirstOrDefault().Uri.AbsoluteUri" target="_blank">@item.Links.FirstOrDefault().Uri.AbsoluteUri</a></p>
            <p>Publish Date: @item.PublishDate.ToString()</p>
            <p>Description: @Html.Raw(item.Summary.Text)</p>
            
        </div>
    }