Greasy Fork is available in English.
fetch pollyfill using GM_xmlhttpRequest
当前为
此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.greasyfork.icu/scripts/421384/898554/GM_fetch.js
function GM_fetch(url, opt){
function blobTo(to, blob) {
if (to == "arrayBuffer" && blob.arrayBuffer) return blob.arrayBuffer()
return new Promise((resolve, reject) => {
var fileReader = new FileReader()
fileReader.onload = function (event) { if (to == "base64") resolve(event.target.result); else resolve(event.target.result) }
if (to == "arrayBuffer") fileReader.readAsArrayBuffer(blob)
else if (to == "base64") fileReader.readAsDataURL(blob) // "data:*/*;base64,......"
else if (to == "text") fileReader.readAsText(blob, "utf-8")
else reject("unknown to")
})
}
return new Promise((resolve, reject)=>{
// https://www.tampermonkey.net/documentation.php?ext=dhdg#GM_xmlhttpRequest
opt = opt || {}
opt.url = url
opt.data = opt.body
opt.responseType = "blob"
opt.onload = (resp)=>{
var blob = resp.response
resp.blob = ()=>Promise.resolve(blob)
resp.arrayBuffer = ()=>blobTo("arrayBuffer", blob)
resp.text = ()=>blobTo("text", blob)
resp.json = async ()=>JSON.parse(await blobTo("text", blob))
resolve(resp)
}
opt.ontimeout = ()=>reject("fetch timeout")
opt.onerror = ()=>reject("fetch error")
opt.onabort = ()=>reject("fetch abort")
GM_xmlhttpRequest(opt)
})
}