Image corrupt or truncated

[Piggy2727]

First, thank you for the fine script.
If I run a script in Firefox I see "Image corrupt or truncated: data:image/png.." at the Javascript error console.
This also happens on your demo page. In other browsers it seems okay.

[debug-ito]

I can confirm this bug.
I use Firefox 14.0.1 in Xubuntu Linux 12.04

In your "cookbook" section, "Basic chain", "Basic loop" and "Workers" emit the error messages,
but "Deferred Ajax", "Parallel deferred" do not emit anything.
I did not try other examples.