Open Bug 1020990 Opened 7 years ago Updated 2 years ago

FileReader does not fire progress event at 100%


(Core :: DOM: Core & HTML, defect, P5)

Windows 7





(Reporter: mozbz, Unassigned)



(1 file)

Firefox only emits Progress events until the file has been loaded, while Chromium and Internet Explorer emit Progress events up to and including 100%.

The W3C FileAPI spec specifies that a progress event must be fired "at 100% completion of the read operation" ( )
Not sure if a testcase is required, but have this anyway to clarify: this outputs the Loaded Bytes count of the last Progress Event received before the Load Event.

In Firefox, the result will be either 100% or less, depending on whether the whole file could be loaded at once.

I haven't yet received less than 100% in other browsers (expected behavior).

Move all DOM bugs that haven’t been updated in more than 3 years and has no one currently assigned to P5.

If you have questions, please contact :mdaly.
Priority: -- → P5
Component: DOM → DOM: Core & HTML
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