| .onprogress handler on XMLHttpRequest objects with response type "blob" works to support progressive download content length information | |
| You should see type, bubble, cancelable, eventPhase, target and current target. | |
| Type: progress | |
| Bubble: false | |
| Cancelable: false | |
| EventPhase: 2 | |
| Target: [object XMLHttpRequest] | |
| Current target: [object XMLHttpRequest] | |