support parsing of content disposition header with empty filename #496
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Currently http responses with header such as
Content-Disposition: 'inline; filename="/"will cause an exception because'/'.split(/[\\\/]/).lastwill result innil, which we later try to translate and getNoMethodError (undefined method 'tr' for nil:NilClass)raised.Using
rpartitionallows to support that edge case while not breaking anything else(in this case filename will be an empty string, instead ofnil)