Javascript tus-上传后访问控制允许原点错误
我正在使用和尝试从web浏览器将文件上载到服务器。在较小的文件(10mb ish)上,它似乎工作正常,但在较大的文件(385mb ish)上,它似乎出现了故障,出现了Javascript tus-上传后访问控制允许原点错误,javascript,node.js,file-upload,tus,Javascript,Node.js,File Upload,Tus,我正在使用和尝试从web浏览器将文件上载到服务器。在较小的文件(10mb ish)上,它似乎工作正常,但在较大的文件(385mb ish)上,它似乎出现了故障,出现了访问控制允许源文件故障 上传进度被调用并一直完成,直到100%,然后失败并出现错误。这让我觉得这个错误与某种类型的验证有关 在控制台中抛出该错误后,它将重试,直到我设置的重试次数限制为止 我已经在下面发布了错误。为什么会发生这种情况 [Error] Origin https://example.com is not allowed
访问控制允许源文件
故障
上传进度被调用并一直完成,直到100%,然后失败并出现错误。这让我觉得这个错误与某种类型的验证有关
在控制台中抛出该错误后,它将重试,直到我设置的重试次数限制为止
我已经在下面发布了错误。为什么会发生这种情况
[Error] Origin https://example.com is not allowed by Access-Control-Allow-Origin.
[Error] XMLHttpRequest cannot load https://upload.example.com//saiudfhia1h due to access control checks.
[Error] Failed to load resource: Origin https://example.com is not allowed by Access-Control-Allow-Origin.
此外,在尝试所有重试之后,它也会失败,并出现此错误
tus: failed to upload chunk at offset 0, caused by [object XMLHttpRequestProgressEvent], originated from request (response code: 0, response text: )
前端JS:
var upload = new tus.Upload(file, {
endpoint: "https://upload.example.com/?id=" + res._id,
retryDelays: [0, 1000, 3000, 5000],
metadata: {
filename: res._id,
filetype: file.type
},
onError: function(error) {
console.log("Failed because: " + error)
},
onProgress: function(bytesUploaded, bytesTotal) {
console.log(bytesUploaded, bytesTotal, percentage + "%")
},
onSuccess: function() {
console.log("Download %s from %s", upload.file.name, upload.url)
alert("You have successfully uploaded your file");
}
})
// Start the upload
upload.start()
后端JS:
server.datastore = new tus.FileStore({
directory: '/files',
path: '/',
namingFunction: fileNameFromUrl
});
server.on(EVENTS.EVENT_UPLOAD_COMPLETE, (event) => {
console.log(`Upload complete for file ${event.file.id}`);
let params = {
Bucket: keys.awsBucketName,
Body: fs.createReadStream(path.join("/files", event.file.id)),
Key: `${event.file.id}/rawfile`
};
s3.upload(params, function(err, data) {
console.log(err, data);
fs.unlink(path.join("/files", event.file.id), (err) => {
if (err) throw err;
console.log('successfully deleted file');
});
});
});
const app = express();
const uploadApp = express();
uploadApp.all('*', server.handle.bind(server));
app.use('/', uploadApp);
app.listen(3000);
问题是服务器位于CloudFlare后面,每个上传请求都有一个大小限制。将tus客户端设置为将上载分块到多个请求中解决了该问题 您可以在tus js客户端中设置一个属性。这在客户之间可能非常重要。此属性的默认值为
无限
var upload=new tus.upload(文件、{
端点:“https://upload.example.com/?id=“+res.\u id,
retryDelays:[0,1000,3000,5000],
chunkSize:x,//将'x'更改为表示所需chunkSize的数字
元数据:{
文件名:res.\u id,
filetype:file.type
},
onError:函数(错误){
console.log(“由于:+错误而失败”)
},
onProgress:函数(BytesUpload,ByTestTotal){
console.log(字节上传,字节总数,百分比+“%”)
},
onSuccess:function(){
console.log(“从%s下载%s”,upload.file.name,upload.url)
警报(“您已成功上载文件”);
}
})
你是怎么做到的?@Kamil刚刚编辑了更多信息。是的,早些时候我更改了块大小。好容易啊。