I am not immediately able to reproduce this, at least in Chrome, can you give a more specific set of steps to reproduce (including OS/Browser)? Does it repro on secure.phabricator.com?

In T5188#3, @chad wrote:

can you give a more specific set of steps to reproduce

Drag a file from somewhere (desktop or whatever) to the Phabricator dashboard. Phabricator should show you a message about uploading files. Before releasing your mouse button, press ESC to lock the interface.

including OS/Browser

Windows Server 2012, Firefox 29.0.1

Does it repro on secure.phabricator.com?

Yes, it does.

This is what I am doing to attempt reproduce, please correct me if I am wrong:

On Windows Server 2012 / Firefox 29:

• Go to any comment field on Phabricator, for example new task.
• Drag a .jpg file from the Desktop into the comment area.
• Hit ESC
• Browser locks up

Is that correct?

I have tested Firefox 29.0.1 on Mac, Win7, and Win8. I don't have Server 2012.

In T5188#6, @chad wrote:

This is what I am doing to attempt reproduce, please correct me if I am wrong:

• Go to any comment field on Phabricator, for example new task.
• Drag a .jpg file from the Desktop into the comment area.

The comment area works fine, should have clarified that. It only seems to affect the dashboard/home.

Awesome, that repro's easily for me

You can also just pick up a file, wave it over the screen, and then put it back.

Looks like a bug in Firefox:

https://bugzilla.mozilla.org/show_bug.cgi?id=656164

This:

http://stackoverflow.com/a/12928838/821226

Claims this:

https://gist.github.com/meleyal/3794126

...is a workaround, although I don't quite understand exactly what's going on there immediately.

A simple alternative fix would be to let you click the overlay to dismiss it.

◀ Merged tasks: T5469.

Messed with this for awhile...

I added some debugging code to omit the depth whenever it is updated. What is strange is that in Firefox, the depth is typically 2 while you drag all around the home page, while the depth is typically 1 in other browsers. Firefox DOES seem to decrement correctly when I drag outside the window; its already off by one though so this doesn't work right.

I am not sure what Firefox is doing under the hood to achieve this oddness.

Attached diff is the simple fix.