mark van tilburg

firefox tries to load the file with file:// if opened locally GET file://code.jquery.com/ui/1.13.2/themes/base/jquery-ui.css net::ERR_FILE_NOT_FOUND Including this would fix the issue if the file is stored locally: `` But using https://...

it's also in v1.12 https://jsfiddle.net/jgh7eu0w/

https://github.com/jquery/jquery-ui/blob/9180a8180b17c38f6c3f27ba46d4546d800d3508/ui/effect.js#L232 do nothing ```javascript if(remove === add){return;} ``` or ```javascript if(remove === add){ return $.effects.animateClass.call( this, { add: add }, speed, easing, callback ); } else { return $.effects.animateClass.call( this,...

@ahmadalfy Looks like a nice addition to me, but only includes the sass file and not the less/css file

@ahmadalfy can you close/remove this pull request?

@ahmadalfy This can be closed

@ahmadalfy might be a good idea to merge this one and then check what is still missing comparing with #4007 #4071 is difficult to diff due to the changed spaces.

@ahmadalfy can you close/remove this pull request?

@ahmadalfy This can be closed

I can see the images should be replaced with other images, it would be better if it would be copies of the placeholder images instead.