What browser are you using?
It looks good here, so it could be a problem of wrong mime sent and browser that doesn't like the wrong mime type.
IE 11 :-X
I can check it at home later with the IE and Chrome on my computer.
Just tried in in Chrome, FF, Pale Moon and IE11 ... window 7, looks fine here.
This has been left here for a while but works fine here as well...
I only have handy MS Edge on win 10, but it works fine.
@Jorin did you get a chance to have a look from another computer?
Oh, I forgot this one. :-[ I will try the coming weekend, I promise. O:-)
/me knows the feeling too well! LOL
Looks fine here as well (Iceweasel 44 on Debian/Stretch). The mimetype looks fine to me:
Content-Type: image/x-ms-bmp
That being said, a BMP file? That enormous 1.2 MB monster makes for a 34 kB PNG… :'(
Using .bmp for anything online is just bonkers, but some people don't know any better.
(I'd disable that file type if it was my site)
Good idea,
@Antechinus! Will be done.