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Disabling page refresh makes the F5 shortcut key and right-click invalid_javascript skills

WBOY
WBOYOriginal
2016-05-16 17:03:031310browse
Copy code The code is as follows:

/*Disable page refresh*/
document.onkeydown = function ()
{
if(event.keyCode==116) {
event.keyCode=0;
event.returnValue = false;
}
}
document. oncontextmenu = function() {event.returnValue = false;}
/* End*/
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