Hi Sherzod, The problem has been solved. same window and hide parameter UniSession.AddJS(   'var f=document.createElement(''form''); '+   '    f.style.display=''none''; '+   '    f.action='''+sURL+'''; '+   '    f.method=''post''; '   '    f.innerHTML=''<input type="hidden" name="PARAMETER_NAME" value="PARAMETER_VALUE"/>''; '+   '    document.body.appendChild(f); '+   '    f.submit(); ' ); thank you for the information.
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