image-meta buffer is empty on Chrome @ Windows 8 (non-admin)

[codengine]

I just noticed that when I tried to load images via Chrome on Windows 8 (as a non-administrator), the buffer for extracting the meta information was always unitizialized.

A proper additional check for the object and a instance of ArrayBuffer just ensured that the image could be read.

[blueimp]

Sorry but I could not reproduce this issue - just tried loading an JPEG image with EXIF information on the demo with Chrome on Windows 8 (virtual machine).
Could you provide the sample image with which you encountered this issue?
And are you also encountering this issue on the demo?

[codengine]

Hey, thanks for your quick reply.
The problem exists with my project as well as with the demo inside a fresh copy of the newest version.

The test case is in fact hard to reproduce, it was:

• Image residing on a NAS (shouldn't matter)
• As well as a random local image
• Windows 8.0
• Chrome 32.0.1700.102 m (works fine at Firefox though)
• User logged in as a non-privileged standard user (the Admin Account is password protected)

Running Chrome as an Administrator fixes the error in both cases, so there should be a problem between the non-privileged user, Windows 8, the FileSystem API and your class. Hard to track, but reproducable in our company.

Hope that helps.

Best Regards

[blueimp]

OK, this issue might just be the result of the missing FileReader error handling.
I've added it in the latest commit here:
000deb7
It's very close to your fix, but focuses on the error object itself.
Please let me know if this fixes the issue for you.

[codengine]

I just tried the same thing as yesterday and it didn't occur anymore, with either version of your library. This is very strange and I just cant reproduce the circumstances. I even set up a Virtual Machine with the same setup as at our office. Anyway, a fail check for your meta-lib is always nice.

[blueimp]

Alright, thanks for the feedback. 👍