Animated images are not playing in webviewer in FileMaker 13 under Yosemite
Operating system version
MacosX Yosemite (10.10)
Description of the issue
An animated image (eg. http://api.flexbuero.ch/labor/files/loader.png) is not animated when showed in a webviewer in FileMaker clients. When accessing the layout in webdirect the animation is completely fine.
Steps to reproduce the problem
Go to layout mode
Add a webviewer to the layout with the url "http://api.flexbuero.ch/labor/files/loader.png".
Enter browse mode
animated loadingbar should appear in webviewer
still image of loadingbar is being displayed
Exact text of any error message(s) that appear