Chrome Version       : 51.0.2704.103
OS Version: 10.0
URLs (if applicable) : https://developer.chrome.com/extensions/getstarted

What steps will reproduce the problem?
1. Follow the instructions up to loading the extension in chrome
2. Go to, for example, cake.com
3. Click the "HELLO" extention icon
4. You get the error "Cannot display image. No response from Google Image search!"

What is the expected result?
The first image when doing a google image search of cake.com

What happens instead of that?
Error

Please provide any additional information below. Attach a screenshot if
possible.
I hope I'm not being an idiot and doing something wrong. The extension just doesn't work; Maybe it's outdated. I can't find anything in the source code that wouldn't make it work. I directly copied the files served in the example.


UserAgentString: Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/51.0.2704.103 Safari/537.36