“The webpage you are viewing is trying to close the window. Do you want to close this window?”
then you should try to use these two lines of code:
window.open(”, ‘_self’, ”);
At my project it helped me.
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He is Consultant for SharePoint Solutions for collaboration, communication and business processes. He provides his customers applications based on standard features as well as development or combining the power of several microsoft tools like Dynamics CRM. In his free time he tries to collect tipps and worthy experience in this blog.