现在有很多的网站关闭了拷贝功能，下面介绍一种方法，将拷贝功能打开。
禁止拷贝的原来实际上是将是给文本元素添加了disabled属性，将该属性祛除即可。
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javascript: (function () {
function allowTextSelection() {
window.console && console.log("allowTextSelection");
var style = document.createElement("style");
style.type = "text/css";
style.innerHTML =
"*,p,div{user-select:text !important;-moz-user-select:text !important;-webkit-user-select:text !important;}";
document.head.appendChild(style);
var elArray = document.body.getElementsByTagName("*");
for (var i = 0; i < elArray.length; i++) {
var el = elArray[i];
el.onselectstart =
el.ondragstart =
el.ondrag =
el.oncontextmenu =
el.onmousedown =
el.onmouseup =
function () {
return true;
};
if (
el instanceof HTMLInputElement &&
["text", "password", "email", "number", "tel", "url"].indexOf(
el.type.toLowerCase()
) > -1
) {
el.removeAttribute("disabled");
el.onkeydown = el.onkeyup = function () {
return true;
};
}
}
}
allowTextSelection();
})();
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上面的代码将其压缩成一行代码如下，只要打开console(Ctrl+Shift+I), 将下面的代码执行一下就ok了。
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javascript:(function(){function allowTextSelection(){window.console&&console.log('allowTextSelection');var style=document.createElement('style');style.type='text/css';style.innerHTML='*,p,div{user-select:text !important;-moz-user-select:text !important;-webkit-user-select:text !important;}';document.head.appendChild(style);var elArray=document.body.getElementsByTagName('*');for(var i=0;i<elArray.length;i++){var el=elArray[i];el.onselectstart=el.ondragstart=el.ondrag=el.oncontextmenu=el.onmousedown=el.onmouseup=function(){return true};if(el instanceof HTMLInputElement&&['text','password','email','number','tel','url'].indexOf(el.type.toLowerCase())>-1){el.removeAttribute('disabled');el.onkeydown=el.onkeyup=function(){return true};}}}allowTextSelection();})();
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参考文档
Enabling blocked text selection using JavaScript