No Longer Able to Upload Images

[dlongnecker@…]

After August 17th, I am unable to upload pictures to posts. The file is created, but the size of the file is 0 bytes.

Using WordPress 3.3-aortic-dissection.

There have been no changes to the file permissions of the server/etc. I have tried uploading from different PC's, but am getting the same results.

[dlongnecker@…]

Just tested using Google Chrome, and it works. IE 8 on Windows and Safari (on Mac) do not work.

[kurtpayne]

Temporary patch while plupload bug report is pending

[kurtpayne]

Confirmed. This looks like a bug in the jsonSerialize() function in the plupload.silverlight module. I've submitted a bug report and a patch to the plupload github site, but I'm awaiting confirmation.

For reference ​plupload bug report

Please take a look at 18540.diff​ and see if this solves the problem for you. It's working on my dev site with IE8 and 3.3-aortic-dissection.

[ocean90]

I already mentioned the Silverlight bug in comment:ticket:18206:33.

The strange thing is, that it works on the demo page.

[kurtpayne]

Replying to ocean90:

I already mentioned the Silverlight bug in comment:ticket:18206:33.

The strange thing is, that it works on the demo page.

Thanks for the link to #18206. It does shed some more light on the issue. It looks like there are two related issues. The plupload.silverlight jsonSerialize() function fails on any null value, it's not limited to WordPress.

In the WordPress plupload implementation, there's a null value being passed if the "scale images ..." checkbox is unchecked. This is perfectly valid. However, when combined with the silverlight runtime and the jsonSerialize() bug, it results in a javascript error.

[azaozz]

In [18620].