I discovered that Bootstrap (v 2.2.2) sets img {max-width: 100%} and that distorts the coordinates from jcrop. My guess is that the scaling puts jcrop off if the image is inside a smaller container. In my case I had a 1500px wide image inside a 940px div using jcrops boxWidth to handle the large image.
My quick fix was to set max-width: none; on the img tag in question.
I discovered that Bootstrap (v 2.2.2) sets img {max-width: 100%} and that distorts the coordinates from jcrop. My guess is that the scaling puts jcrop off if the image is inside a smaller container. In my case I had a 1500px wide image inside a 940px div using jcrops boxWidth to handle the large image.
My quick fix was to set max-width: none; on the img tag in question.