upload.onProgress in IE10

[DartBot]

This issue was originally filed by DrCol...@gmail.com

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What steps will reproduce the problem?

Using upload.onProgress

e.g.
HttpRequest request = new HttpRequest();
request.upload.onProgress.listen((e) {
     
});

I know that old versions (inlcuding IE9) do not support this. But IE10 is supposted to support this event. See on SO http://stackoverflow.com/a/12866419/368003

What is the expected output? What do you see instead?
Proper processing of the event. The exception simply says

"onprogress is not a supported method on the object".

When i use the wonderfull (...) debugging dev tools, I can see that the XMLHTTPRequest Object has onprogress on it, so the transition from Dart to IE does seem to address the false method/property/call/...?

What version of the product are you using? On what operating system?
IE10, Win7, latest Dart build

[iposva-google]

Added Area-HTML, Triaged labels.

[blois]

The event is supported on HttpRequest, I'm not sure that it is fully supported in IE on the HttpRequestUpload object.

This syntax is tested & supported:
HttpRequest request = new HttpRequest();
request.onProgress.listen((e) {
});

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Added this to the M5 milestone.

[DartBot]

This comment was originally written by DrColosso...@gmail.com

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No, this works even less. Now Chrome and co don't work as well. When using request.upload.onProress, I got results on some browsers, now I'm not able to see anything.

[blois]

Set owner to @blois.
Added Accepted label.

[blois]

I'm seeing this work properly on Chrome & FF, and have a fix in progress for IE.

One thing though is that the progress event only seems to fire when the data is sufficiently large that it doesn't all get sent at once.

[blois]

Fixed with https://codereview.chromium.org/16376006/

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Added Fixed label.