upload avatar problem & 'Save' on code.webplatform.org

hi people,

i wanted to let you know some bugs i've found over the last days
experimenting with the wiki.

When i choose an avatar and hit upload, server responds with 500. Image is
smaller that the 100kb limit. Running on Chrome 28.x and tested also on
latest FF with same results

Second the Save function on code.webplatform.org, running Chrome 28.x, is
not working. Works on all other browsers, just not on Chrome(on Dabblet.com
also by the way).

That's all,
KB