"accept" is always case sensitive

[eekboom]

I have configured the my upload field to accept MS Word files:
<input type="file" name="file" ng-model="vm.file" base-sixty-four-input accept=".doc, .docx">
Unfortunately that prevents upload files with upper case characters in the extension like some.DOC or another.Doc.
(For some reason our users have lots of word documents with .DOC suffix.)

Ideas:

• Generally make the "accept" value case insensitive
• Add an option to make the "accept" value case insensitive
• Accept regexp objects in the "accept" parameter (or add a new parameter like "accept-regexp")

[mahavir2013]

We need a fix here I think. Same issue for me also.