File upload does not work in IE

I believe this worked without the ng2-file-upload module.

[tdonohue]

Just as a note, I think we have more IE problems than just file upload. IE 11 fails to even browse properly (I get errors on all Community / Collection / Item pages).

The new Microsoft Edge browser works OK, but Item creation / upload fails. On the backend, the item create actually succeeds (upload doesn't), but nonetheless I get this error in the Edge developer tools when create-item is called.

SCRIPT7002: XMLHttpRequest: Network Error 0x2efe, Could not complete the operation due to error 00002efe.
create-item

So, we'll have to look into some IE related fixes post-OR16.