如何從瀏覽器的菜單欄中禁用刷新按鈕

Question

如何使用angularjs或javascript或jquery從瀏覽器的菜單欄中禁用刷新按鈕

Answer 1

 function disableF5(e) { if ((e.which || e.keyCode) == 116) e.preventDefault(); }; $(document).on("keydown", disableF5); // simply visual, let's you know when the correct iframe is selected $(window).on("focus", function(e) { $("html, body").css({ background: "#FFF", color: "#000" }) .find("h2").html("THIS BOX NOW HAS FOCUS<br />F5 should not work."); }) .on("blur", function(e) { $("html, body").css({ background: "", color: "" }) .find("h2").html("CLICK HERE TO GIVE THIS BOX FOCUS BEFORE PRESSING F5"); }); 

 html, body { background: #000; color: #FFF; height: 100%; margin: 0; padding: 0; width: 100%; } div { display: table; height: 100%; width: 100%; } h2 { display: table-cell; text-align: center; vertical-align: middle; } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div> <h2>CLICK HERE TO GIVE THIS BOX FOCUS BEFORE PRESSING F5</h2> </div>