问题
I added the smart app banner meta tag to my page and it was working fine at one point yesterday. However, now the banner only appears as a gray bar with no content in it. It appears to try to load something for a second, but then stops. Not sure what I changed in the code that would break it. Link for screenshot included below or see for yourself live:
http://grahamgram.com
回答1:
I think the service is currently down.
Been having the same problem myself, have just tested the ted.com site and theirs doesn't load either.
Hope that helps!
回答2:
the reason could be:
- you are using a wrong app-id
- your app and your apple-id (the one you use for app store) belong to different countries
- you are using a proxy to test this smart banner in your dev env (so itunes cannot get the infomation, you can try to download the app from app store with proxy)
- other reasons like the first answer
来源：https://stackoverflow.com/questions/13308976/smart-app-banner-showing-as-blank-gray-bar