good but inconsistent

It works beautifully on my main website, and that of a client’s, meaning you click on a smaller image and it expands, but clicking on its top right star button and it zooms in nicely. However on two other sites that aforementioned top right feature does NOT appear, so a grand slam remains a base hit. A darn shame ’cause it means I won’t be able to offer it to subsequent clients. Reckon they want me to go premiere or something.