I'm detecting window closed this way, and It works but I can't execute a function.
function myFunc(){ alert("byebye"); } window.onbeforeunload = function (event) { myFunc(); //Error, it doesn't execute return "Bye"; //It works, it shows an alert. }; How can I call myFunc when I'm closing a window/tab?
Try this by replacing alert by return.
function myFunc(){ return "byebye"; } window.onbeforeunload = function (event) { myFunc(); //Error, it doesn't execute return "Bye"; //It works, it shows an alert. }; You can't call functions at the onbeforeunload event, you can only pass a string that is shown to the user.
