将跨域资源转为本地资源

loadCORS.js

// 脚本资源
let tmpWorker = await fetch(workerUrl),
    workerSrcBlob = new Blob([await tmpWorker.text()], { type: 'text/javascript' }),
    workerBlobURL = window.URL.createObjectURL(workerSrcBlob);

// workerBlobURL 即为网站域名下的资源


// 图片资源
let tmpImg = await fetch(imageUrl),
    imgSrcBlob = new Blob([new Uint8Array(await tmpImg.arrayBuffer())]),
    imgUrl = window.URL.createObjectURL(imgSrcBlob);

// imgUlr 即为网站域名下的资源

// 资源的 URL 类似： blob:https://example.com/xxxxxx-xxxx-xxxx-xxxxxxxxxxxxx