Create XHR listeners before opening the connection (#205)

felipeespitalher · web-flow · commit d3111c751a73 · 2022-03-19T13:17:42.000+01:00
https://stackoverflow.com/questions/14160308/xhr-upload-onprogress-doesnt-work
diff --git a/s3file/static/s3file/js/s3file.js b/s3file/static/s3file/js/s3file.js
@@ -21,7 +21,6 @@
     file.loaded = 0
     return new Promise(function (resolve, reject) {
       var xhr = new window.XMLHttpRequest()
-      xhr.open(method, url)
 
       xhr.onload = function () {
         if (xhr.status === 201) {
@@ -62,6 +61,7 @@
         reject(xhr.statusText)
       }
 
+      xhr.open(method, url)
       xhr.send(data)
     })
   }

Original file line number	Diff line number	Diff line change
`@@ -21,7 +21,6 @@`
`21`	`21`	`file.loaded = 0`
`22`	`22`	`return new Promise(function (resolve, reject) {`
`23`	`23`	`var xhr = new window.XMLHttpRequest()`
`24`		`- xhr.open(method, url)`
`25`	`24`
`26`	`25`	`xhr.onload = function () {`
`27`	`26`	`if (xhr.status === 201) {`
`@@ -62,6 +61,7 @@`
`62`	`61`	`reject(xhr.statusText)`
`63`	`62`	`}`
`64`	`63`
	`64`	`+ xhr.open(method, url)`
`65`	`65`	`xhr.send(data)`
`66`	`66`	`})`
`67`	`67`	`}`