I’ve been working on finalising the tag/recommender plugin and we have a serious problem.
We determined that we needed a TagAll button, instead of separate buttons for each tag field. I implemented this, but unfortunately the version of the Prototype.js library that BB uses is not supporting IE9 (and I have evidence of problems with IE8 as well), so the functionality broke under IE, so I had to solve this issue.
I’ve tried many things in vein, and in the end I decided to hand code the Ajax calls. I’ve just finished that and it still doesn’t work in IE. It looks like the failing Prototype.js calls performed by BB (not in my code) conflicts in such a way that the Ajax calls corrupts and dies!
So until BB get SP6 we are kind of stuck. We either have tag buttons for each field or we do not support IE.
I can alternatively check what browser the user uses, and add the functionalities accordingly. We need to discuss this at our next meeting…