File extensions can also be added to the upload type whitelist; they'll be normalized to types for the actual comparison, so only known extensions will work.
306 B
1x1px
306 B
1x1px
![](/GNUsocial/gnu-social/raw/commit/5c2b073a50341be024a87f5f17f72684d3004b55/tests/sample-uploads/image.jpg)