I am already running one monitor in Kiosk Mode where the user cannot open any other tabs. (Thanks to you , which helped me sometime back)
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This was for another computer where i have setup a batch file to open the dashboard page in fullscreen mode and the person running dashboard cannot find the CLOSE TAB button even by hovering the mouse on top. Ctrl+W does the trick, but i thought it was easy to put a button on dashboard to close the window.