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‎utils/browser-extensions/cors/cors.html‎

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<html>
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<head>
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<title>
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cors extension
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</title>
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<style>
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html
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{font-family:arial}
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#hdr
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{display:flex;justify-content:space-between}
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.item
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{display:flex;gap:30px}
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.item a
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{width:200px;text-align:right}
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</style>
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</head>
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<body>
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<div id=hdr>
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<div>
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<a href='https://ext-code.com/'>
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home
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</a>
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</div>
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<h3>
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cors extension
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</h3>
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<div>
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17 Dec 2025
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</div>
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</div>
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<div class=desc>
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add cors headers to requests
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</div>
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<div>
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<div id=chrome style='text-decoration:underline'>
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download chrome
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</div>
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<div id=firefox style='text-decoration:underline'>
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download firefox
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</div>
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</div>
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</body>
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<script>
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var $ = (root,css)=>(!css && (css=root,root=document),root.querySelector(css));
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window.onload = async function(){
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await libs();
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initdom();
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}//onload
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//:
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async function libs(){
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jszip = await import('https://cdn.jsdelivr.net/npm/jszip/+esm');
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jszip = jszip.default;
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}//libs
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//:
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var btn = {};
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//:
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funciton initdom(){
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$('#chrome').onclick = btn.chrome;
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$('#firefox').onclick = btn.firefox;
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}//initdom
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//:
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btn.chrome = function(){
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var dir = {
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'xml-http-request' :{directory:{
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'xhr-upload.html' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/xhr-upload.html'}}},
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'upload-server.js' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/upload-server.js'}}},
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'xhr-download.html' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/xhr-download.html'}}},
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'download-server.js' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/download-server.js'}}},
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node_modules : {directory:{
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'a.txt' : {file:{contents:'a'}},
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}}
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}}
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};
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var blob = await create(dir,{download:false,df:true});
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console.log('zip',blob.type,blob.size);
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}//chrome
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btn.firefox = function(){
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var dir = {
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'xml-http-request' :{directory:{
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'xhr-upload.html' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/xhr-upload.html'}}},
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'upload-server.js' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/upload-server.js'}}},
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'xhr-download.html' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/xhr-download.html'}}},
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'download-server.js' : {file:{github:{repo:'javascript-2020.github.io',path:'/blog/25-07-31/xml-http-request/ex/download-server.js'}}},
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node_modules : {directory:{
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'a.txt' : {file:{contents:'a'}},
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}}
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}}
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};
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var blob = await create(dir,{download:false,df:true});
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}//firefox
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//:
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console.log('zip',blob.type,blob.size);
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async function create(dir,{download=true,test,df=false}={}){
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df && console.log('download',!!download);
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df && console.log('test',!!test);
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df && console.json(dir);
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df && console.log();
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var zip;
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if(!test){
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zip = new jszip();
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}
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var resolve,promise=new Promise(res=>resolve=res);
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var ct=0,total=0;
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add(dir);
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await promise;
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var blob;
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if(zip){
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blob = await zip.generateAsync({type:'blob'});
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if(download){
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var url = window.URL.createObjectURL(blob);
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var a = document.createElement('a');
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a.download = 'https-file-server';
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a.href = url;
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a.click();
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}
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}
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return blob;
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async function add(dir,abs=''){
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for(let key in dir){
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ct++;
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var o = dir[key];
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if(o.directory){
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df && console.log('dir :',abs+key);
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if(zip){
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zip.folder(abs+key);
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}
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add(o.directory,abs+key+'/');
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complete();
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}
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if(o.file?.contents){
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df && console.log('file create :',abs+key);
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if(zip){
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zip.file(abs+key,o.file.contents);
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}
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complete();
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}
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if(o.file?.github){
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var owner,repo,branch,path;
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if(typeof o.file.github=='string'){
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path = o.file.github;
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}else{
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({owner,repo,branch,path} = o.file.github);
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}
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owner ||= 'javascript-2020';
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repo ||= 'libs';
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branch ||= 'main';
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if(path.startsWith('/')){
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path = path.slice(1);
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}
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df && console.log('file github :',abs+key);
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df && console.log(owner,repo,branch,path);
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if(zip){
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fetch(`https://raw.githubusercontent.com/${owner}/${repo}/${branch}/${path}`)
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.then(res=>res.text().then(txt=>{
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zip.file(abs+key,txt);
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complete();
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}));
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}
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}
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}//for
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function complete(){
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total++;
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if(ct==total){
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resolve();
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}
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}//complete
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}//add
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}//create
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</script>
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</html>
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