Redirect to default image when file is not found

Alexander Farber asked:

From an iOS app I upload small avatars of Apple Game Center users to a web server, into an /ios-avatars/ dir.

But some players do not have any pictures.

By using Apache mod_rewrite is it please possible to redirect “not found” requests to files like /ios-avatars/GC123456789.png to /images/default.png?

My answer:

You don’t even need a rewrite for that. Just use an ErrorDocument

<Location /ios-avatars/>
    ErrorDocument 404 /images/default.png

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