I have the code and plugin installed. When you find an image in Google you get the options to "Visit page -- View original image -- Image details".
If the first thing you click on is View Original Image, it redirects properly. However, if you then hit your back button and return to the options, clicking on View Original Image won't work the second time.
Also, if the first thing you click on is Visit Page and then you use the Back button to return to the Google options, clicking on View Original Image will also not redirect then, either.
We all appreciate you working on this! Thanks.