We believe that SJCL provides the best security which is practically available in Javascript. (Unforunately, this is not as great as in desktop applications because it is not feasible to completely protect against code injection, malicious servers and side-channel attacks.)
Comments
The Stanford Javascript Crypto Library was written / overseen by Dan Boneh who is a serious cryptographer by any definition.
http://bitwiseshiftleft.github.io/sjcl/
And? It's vetted by a cryptographer who noted the caveats that apply. Do you take 'vetted' to mean 'unreservedly recommend'?
I would, yes.
His disclaimer mentions three game-over problems.