Database Open Error

源自：3-4 session实战演示

点击登录之后显示 Database Open Error

审查页面的console显示错误内如下

Error in event handler for runtime.onMessage: TypeError: Cannot read property 'join' of undefined

at Object.getPageLang (chrome-extension://hlppekcioiicbfafmmgikkdkljnjpiao/content.js:1:8920)

at chrome-extension://hlppekcioiicbfafmmgikkdkljnjpiao/content.js:8:46945

小白一路看课程到此，不能止步于此啊，求大神解答

提问者：c初见 2019-07-02 10:05