Web前端安满是个新概念，能够理解为它是Web安全防护范畴的一部分。
早些时候，曾被狭义的以为前端安全即 *** 安全。却是没有错，但不全面。现在来看，应该说：前端代码安全（ *** 代码安全）+ 前端进犯侵略防护功用 = Web前端安全。
也能够浅显的解释为：Web前端安全，包括： *** 代码安全、Web前端安全防护两个方面。
为什么要做Web前端安全作业？
简略的概述而言：做好Web前端安全，能够避免许多Web安全事情的发作。比方：Web页面功用被剖析、 *** H5使用被仿制或盗用、正常功用被篡改；还比方：避免爬虫、避免自动化进犯、避免SQL注入、避免XSS进犯、避免CRSF等等。
看到这儿，不要疑问，上面没打错字：Web前端安全做好了，能够完成许多本该是WAF才有的安全防护作用。
假如安全要求不是十分高，许多中小企业的Web防护，完全能够在Web前端完成。
Web前端安全实操
（1） *** 代码安全
Web页面功用，都是由 *** 代码完成的。 *** 代码揭露通明的特色，使代码谁都能够恣意检查，这就带来了如：被剖析、仿制、盗用、功用篡改等一系列安全隐患。
闻名的事情如：锤子手机发布时销量造假事情、小米手机英国众筹做弊事情，都是因为 *** 代码未维护而直接导致的。
*** 代码通过混杂加密后，会变成不行读、不行剖析、不行盗用（代码可与域名绑定）的安全代码，可极大的进步前端功用安全性。
*** 代码混杂加密，有专业的渠道东西，比方： *** haman。

一段未经维护的代码，如：
function hello_world()
{
alert("hello world");
}
hello_world();
经 *** haman混杂加密，低强度的维护成果，代码会变为：
var _0x5f2d=['hellox20world'];(function(_0x1d7bcc,_0x3c8ae3){var _0x51bb3c=function(_0x1df202){while(--_0x1df202){_0x1d7bcc['x70x75x73x68'](_0x1d7bcc['x73x68x69x66x74']());}};_0x51bb3c(++_0x3c8ae3);}(_0x5f2d,0x121));var _0xd5f2=function(_0x32a75d,_0x18d324){_0x32a75d=_0x32a75d-0x0;var    _0x462cef=_0x5f2d[_0x32a75d];return _0x462cef;};function hello_world(){alert(_0xd5f2('0x0'));}hello_world();
到这儿，或许有人会有异意：eval也是能够对 *** 代码进行加密的。此言差异，eval早已经被玩坏了，复原eval加密代码的 *** 简直是千千万。而这种混杂加密的 *** ，维护后的代码是不行逆的。

或许上面的维护成果还不行安全？那么将加密强度调高一些，成果可成为:
var _0x0514=['aGV *** G8gd29ybGQx3d'];(function(_0x3b012b,_0x539d9c){var _0x37316d=function(_0x30ad8d){while(--_0x30ad8d){_0x3b012b['x70x75x73x68'](_0x3b012b['x73x68x69x66x74']());}};var _0x53350c=function(){var _0x823789={'x64x61x74x61':{'x6bx65x79':'x63x6fx6fx6bx69x65','x76x61x6cx75x65':'x74x69x6dx65x6fx75x74'},'x73x65x74x43x6fx6fx6bx69x65':function(_0xbc497b,_0x4336d2,_0x4169e2,_0x43419c){_0x43419c=_0x43419c||{};var    _0x4916b2=_0x4336d2+'x3d'+_0x4169e2;var _0x12134a=0x0;for(var _0x12134a=0x0,_0x783636=_0xbc497b['x6cx65x6ex67x74x68'];_0x12134avar _0x2e1f17=_0xbc497b[_0x12134a];_0x4916b2+='x3bx20'+_0x2e1f17;var _0x35f5fa=_0xbc497b[_0x2e1f17];_0xbc497b['x70x75x73x68'](_0x35f5fa);_0x783636=_0xbc497b['x6cx65x6ex67x74x68'];if(_0x35f5fa!==!![]){_0x4916b2+='x3d'+_0x35f5fa;}}_0x43419c['x63x6fx6fx6bx69x65']=_0x4916b2;},'x72x65x6dx6fx76x65x43x6fx6fx6bx69x65':function(){return'x64x65x76';},'x67x65x74x43x6fx6fx6bx69x65':function(_0x48ae46,_0x427a1d){_0x48ae46=_0x48ae46||function(_0x271c78){return    _0x271c78;};var _0x3a6742=_0x48ae46(new RegExp('x28x3fx3ax5ex7cx3bx20x29'+_0x427a1d['x72x65x70x6cx61x63x65'](/([.$?*|{}()[]/+^])/g,'x24x31')+'x3dx28x5bx5ex3bx5dx2ax29'));var _0x3ae165=function(_0xc39227,_0x5b1202){_0xc39227(++_0x5b1202);};_0x3ae165(_0x37316d,_0x539d9c);return    _0x3a6742?decodeURIComponent(_0x3a6742[0x1]):undefined;}};var _0x33cdd7=function(){var _0xb70dcd=new RegExp('x5cx77x2bx20x2ax5cx28x5cx29x20x2ax7bx5cx77x2bx20x2ax5bx27x7cx22x5dx2ex2bx5bx27x7cx22x5dx3bx3fx20x2ax7d');return    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