审查元素的情况下,大家都可以随机更改一部分页面的代码,
注入恶意JS等等,这种情况避免也不难,虽然还能看到一部分H5源码,但是无法修改
一、屏蔽F12 审查元素
document.onkeydown = function(){
if(window.event && window.event.keyCode == 123) {
alert("F12被禁用");
event.keyCode=0;
event.returnValue=false;
}
if(window.event && window.event.keyCode == 13) {
window.event.keyCode = 505;
}
if(window.event && window.event.keyCode == 8) {
alert(str+"\n请使用Del键进行字符的删除操作!");
window.event.returnValue=false;
}
}
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除了屏蔽这个,我们还有其他有趣的设置:
二、屏蔽右键菜单
document.oncontextmenu = function (event){
if(window.event){
event = window.event;
}try{
var the = event.srcElement;
if (!((the.tagName == “INPUT” && the.type.toLowerCase() == “text”) || the.tagName == “TEXTAREA”)){
return false;
}
return true;
}catch (e){
return false;
}
}
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三、屏蔽粘贴
document.onpaste = function (event){
if(window.event){
event = window.event;
}try{
var the = event.srcElement;
if (!((the.tagName == “INPUT” && the.type.toLowerCase() == “text”) || the.tagName == “TEXTAREA”)){
return false;
}
return true;
}catch (e){
return false;
}
}
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四、屏蔽复制
document.oncopy = function (event){
if(window.event){
event = window.event;
}try{
var the = event.srcElement;
if(!((the.tagName == “INPUT” && the.type.toLowerCase() == “text”) || the.tagName == “TEXTAREA”)){
return false;
}
return true;
}catch (e){
return false;
}
}
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五、屏蔽剪切
document.oncut = function (event){
if(window.event){
event = window.event;
}try{
var the = event.srcElement;
if(!((the.tagName == “INPUT” && the.type.toLowerCase() == “text”) || the.tagName == “TEXTAREA”)){
return false;
}
return true;
}catch (e){
return false;
}
}
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这种很适合小说网站,毕竟版权珍贵,被别人随意copy走内容就不好了
六、屏蔽选中
document.onselectstart = function (event){
if(window.event){
event = window.event;
}try{
var the = event.srcElement;
if (!((the.tagName == “INPUT” && the.type.toLowerCase() == “text”) || the.tagName == “TEXTAREA”)){
return false;
}
return true;
} catch (e) {
return false;
}
}
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