fix splice error in sockjs template adapter
fix splice error in sockjs template adapter

snadn/thinkjs,akira-cn/thinkjs,75team/thinkjs,maxzhang/thinkjs,maxzhang/thinkjs,thinkjs/thinkjs,Qihoo360/thinkjs,akira-cn/thinkjs,75team/thinkjs,akira-cn/thinkjs,maxzhang/thinkjs,75team/thinkjs