Users with no skin but with cape get wrong avatar

[jomo]

Some affected users

All users with a cape and without a skin, e.g.:

Edit: removed list
(all users with no skin)

Spoiler alert

They all redirect to http://textures.minecraft.net/texture/8adb45dbefe2465745a6d1fcee9b8a721792e21c5eb1524ef516bb6fb189 (which is their cape, not their skin)
Usually http://skins.minecraft.net/MinecraftSkins/<name>.png redirects to the skin.

---

This is 100% Mojang's error, and I can (probably) tell what's causing it without seeing their code:
Mojang seems to store textures as JSON like this:

"textures": {
  "SKIN": {
    "url": "http://textures.minecraft.net/texture/foo"
  },
  "CAPE": {
    "url": "http://textures.minecraft.net/texture/bar"
  }
}

The skin seems to always come first, so I'm quite sure Mojang redirects to textures[0]. Of course that is wrongfully the cape URL if the user has no skin.

---

Sorry for all the mentions below, not sure who's responsible for this kind of stuff.
Perhaps @Dinnerbone, @KrisJelbring or @grum could look into this? This is definitely a bug on your side ;)

[jomo]

Here is the image it redirects to:

For some reason it's application/octet-stream instead of image/png, anyway, the resulting avatar is obviously messed up:

[jomo]

See also WEB-14.

[jengel3]

Interesting that this likely wouldn't have been discovered without the Scrolls capes..

[ezfe]

This is an issue strictly with the scrolls capes, not in general. A player without a skin who has a cape won't experience this.

An example is http://skins.minecraft.net/MinecraftSkins/ezekielelin.png (minecon cape, no skin)

[jomo]

I'm not sure what you're trying to say @ezfe. Do you mean players are not affected by this ingame?
It's a bug in the API.

[jomo]

Thanks for your edit, confirmed.

[ezfe]

@jomo No, I'm saying the issue is just with the scrolls capes. Not sure if your second post indicates you got that.

[jomo]

Yep I got that :)

[tomassommar]

Yes, this was a bug affecting the legacy skins system during the Scrolls cape campaign, and thus affecting users using older Minecraft versions.

Good catch, and very well reported! The bug has been fixed, even though it is technically not since the celebration is no longer active, to avoid the same issue in the future with possible upcoming events, if any.

[jomo]

Thanks Tomas, WEB-14 is still open. I'm not able to close it :/

[jengel3]

Thanks!