prevent ctrl+w kvm session

1 files changed, 6 insertions, 0 deletions

diff --git a/web/share/js/kvm/main.js b/web/share/js/kvm/main.js
index 3019f980..97e3f62c 100644
--- a/web/share/js/kvm/main.js
+++ b/web/share/js/kvm/main.js
@@ -24,6 +24,12 @@ var wm;
 
 function main() {
 	if (checkBrowser()) {
+		window.onbeforeunload = function(event) {
+			var text = "Are you sure you want to close Pi-KVM session?";
+			event.returnValue = text;
+			return text;
+		};
+
 		wm = new WindowManager();
 
 		tools.setOnClick($("show-about-button"), () => wm.showWindow($("about-window")));