As we know, Weex is using custom js engine (JavascriptCore) on Android as same as IOS. When Weex startup will inject a long js script that we call it jsf to JSC. This action could generate many global object which share on diff page. if one page change that global object, will impact all page. For example, we could use this script http://dotwe.org/vue/522f075bbeed1479486c067781c41adc to change global object, if other page use "setTimeout" may throw js exception. So we want use multi context for Weex page, that one page cannot impact other pages.
As the picture shows, create globla class on Global Context and transform limited & controllable class to Instance Context which each Weex page has one. What do you think fellows? Best regards, Toretto
