UserAgent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.117 Safari/537.36

Steps to reproduce the problem:
i just want information because at my end chrome.runtime its methods and properties not working and gives type error

Error  ==> TypeError: Cannot read property 'sendMessage' of undefined

What is the expected behavior?
No Error

What went wrong?
on previous chrome version its working it stops working fro m this Version 66.0.3359.117

Did this work before? Yes Before Version 66.0.3359.117

Does this work in other browsers? Yes

Chrome version: 66.0.3359.117  Channel: stable
OS Version: 6.1 (Windows 7, Windows Server 2008 R2)
Flash Version: