Okay, some results (see desc)

Description: So, 3 tests: \r\n Test 1: http://pixelartmaker.com/art/d8763899a54132b - image/gif base64. Animated, but does not show on gallery! \r\n http://pixelartmaker.com/art/eaaf99730464094 Test 2: http://pixelartmaker.com/art/eaaf99730464094 - image/png base64. Animated, but does not show on gallery! \r\n Test 3: http://pixelartmaker.com/art/d3c6a2567128b76 - image/png base64. NOT animated, and shows on the gallery! \r\n Bothersome...