I’m having the same problem — I can’t get the vimeo videos to autoplay. I have tried adding vimeoClickToPlay: false to the options, adding data-vimeo-click-to-play="false" to the link, and I’ve even tried editing the source .js files to manually change the value of clickToPlay, but nothing works. Thanks in advance for any help.
by the way, I noticed in the settings documentation that you have Vimeo options set as var youTubeOptions:
https://github.com/blueimp/Gallery#vimeo-options
