yett/dist/yett.min.js

A small library that can prevent other scripts from executing.

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Symbol&&t[Symbol.iterator]||t["@@iterator"];if(null==r)return;var n,i,o=[],c=!0,l=!1;try{for(r=r.call(t);!(c=(n=r.next()).done)&&(o.push(n.value),!e||o.length!==e);c=!0);}catch(t){l=!0,i=t}finally{try{c||null==r.return||r.return()}finally{if(l)throw i}}return o}(t,e)||f(t,e)||function(){throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function p(t){return function(t){if(Array.isArray(t))return y(t)}(t)||function(t){if("undefined"!=typeof Symbol&&null!=t[Symbol.iterator]||null!=t["@@iterator"])return Array.from(t)}(t)||f(t)||function(){throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.")}()}function f(t,e){if(t){if("string"==typeof t)return y(t,e);var r=Object.prototype.toString.call(t).slice(8,-1);return"Object"===r&&t.constructor&&(r=t.constructor.name),"Map"===r||"Set"===r?Array.from(t):"Arguments"===r||/^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(r)?y(t,e):void 0}}function y(t,e){(null==e||e>t.length)&&(e=t.length);for(var r=0,n=new Array(e);r<e;r++)n[r]=t[r];return n}c.observe(document.documentElement,{childList:!0,subtree:!0});var b=document.createElement,d={src:Object.getOwnPropertyDescriptor(HTMLScriptElement.prototype,"src"),type:Object.getOwnPropertyDescriptor(HTMLScriptElement.prototype,"type")};document.createElement=function(){for(var t=arguments.length,r=new Array(t),n=0;n<t;n++)r[n]=arguments[n];if("script"!==r[0].toLowerCase())return b.bind(document).apply(void 0,r);var o=b.bind(document).apply(void 0,r);try{Object.defineProperties(o,{src:a(a({},d.src),{},{set:function(t){i(t,o.type)&&d.type.set.call(this,e),d.src.set.call(this,t)}}),type:a(a({},d.type),{},{get:function(){var t=d.type.get.call(this);return t===e||i(this.src,t)?null:t},set:function(t){var r=i(o.src,o.type)?e:t;d.type.set.call(this,r)}})}),o.setAttribute=function(t,e){"type"===t||"src"===t?o[t]=e:HTMLScriptElement.prototype.setAttribute.call(o,t,e)}}catch(t){console.warn("Yett: unable to prevent script execution for script src ",o.src,".\n",'A likely cause would be because you are using a third-party browser extension that monkey patches the "document.createElement" function.')}return o};var v=new RegExp("[|\\{}()[\\]^$+*?.]","g");t.unblock=function(){for(var t=arguments.length,i=new Array(t),l=0;l<t;l++)i[l]=arguments[l];i.length<1?(r.blacklist=[],r.whitelist=[]):(r.blacklist&&(r.blacklist=r.blacklist.filter((function(t){return i.every((function(e){return"string"==typeof e?!t.test(e):e instanceof RegExp?t.toString()!==e.toString():void 0}))}))),r.whitelist&&(r.whitelist=[].concat(p(r.whitelist),p(i.map((function(t){if("string"==typeof t){var e=".*"+t.replace(v,"\\$&")+".*";if(r.whitelist.every((function(t){return t.toString()!==e.toString()})))return new RegExp(e)}else if(t instanceof RegExp&&r.whitelist.every((function(e){return e.toString()!==t.toString()})))return t;return null})).filter(Boolean)))));for(var a=document.querySelectorAll('script[type="'.concat(e,'"]')),s=0;s<a.length;s++){var f=a[s];o(f)&&(n.blacklisted.push([f,"application/javascript"]),f.parentElement.removeChild(f))}var y=0;p(n.blacklisted).forEach((function(t,e){var r=u(t,2),i=r[0],c=r[1];if(o(i)){for(var l=document.createElement("script"),a=0;a<i.attributes.length;a++){var s=i.attributes[a];"src"!==s.name&&"type"!==s.name&&l.setAttribute(s.name,i.attributes[a].value)}l.setAttribute("src",i.src),l.setAttribute("type",c||"application/javascript"),document.head.appendChild(l),n.blacklisted.splice(e-y,1),y++}})),r.blacklist&&r.blacklist.length<1&&c.disconnect()},Object.defineProperty(t,"__esModule",{value:!0})}));
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