Chrome Version       : Version 67.0.3396.69 (Official Build) beta (64-bit)
URLs (if applicable) : news.google.com
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari:
    Firefox:
       Edge:

What steps will reproduce the problem?
(1) go to page
(2) use pwa to inject manifest
(3) try to add to shelf

What is the expected result?
i should be able to see the add to shelf button


What happens instead?


Please provide any additional information below. Attach a screenshot if
possible.