Web-serving a file : Firefox truncates name

I'm serving a file from Lighttpd whose name contains space-characters. I'm using mimetype "application/octet-stream"

When I download this in Chrome, it works perfectly. But when I download in Firefox, the filename is truncated at the first space.

Is this to do with the mimetype? With some other light开发者_StackOverflowty config? Or maybe something to do with the kind of space-character I'm using?

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You need to urlencode your links. Spaces are easily misunderstood in URLS.

The url code for space is %20 or you can also use +

So for

http://example.com/test file.jpg

You would use:
http://example.com/test%20file.jpg
or
http://example.com/test+file.jpg

I prefer to not use filenames with spaces in them.