Empty type for some file types in Chrome

[arturi]

Thank you for the module! Been using it a while, great help!

Ran into a bug:

1. Set up drag-drop on a target element;
2. In Chrome drop a .csv (sample csv file) file on the target
3. Inspect file object returned from by drag-drop, type will be empty;
4. Try the same with https://github.com/mikolalysenko/drag-and-drop-files, type will be there for .csv file.

Demo: https://codepen.io/anon/pen/QqppOe.

The reason, I think, is that drag-drop is using e.dataTransfer.items, when it’s available, and then .webkitGetAsEntry() and then .file(callback) method on that. Somewhere in this chain the type gets lost. It remains, however, when calling .getAsFile() instead of .webkitGetAsEntry(): https://codepen.io/anon/pen/LzWWMQ.

Found a Chrome bug report here: https://bugs.chromium.org/p/chromium/issues/detail?id=155455

[feross]

Go ahead and give drag-drop@2.14.0 a try. I think this issue was fixed by cc0c84f

CodePen demo: https://codepen.io/anon/pen/yKWJpe

[arturi]

Thank you!

In my tests drag-drop@2.14.0 returns just the folder name as a file, instead of folder content though :( Can’t try 3.0.0, cause we have not settled on IE11 support yet.

[feross]

@arturi What browser? Not all browsers support dropping a folder.

[feross]

This was a regression, you're right. See: #39