fix the bug that you can not specity the timeout every time using cache
fix the bug that you can not specity the timeout every time using cache

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