DCM Image not displayed in JSON but is displayed in /local . Bug? How to debug?

Hi,
I tested the JSON URL with the sample data. Everything worked fine. But when I tried with my own data I was shown a white image. I thought maybe the image is corrupt so I uploaded it with /local and it was displayed. So maybe something is wrong with JSON. Is there a way to debug and compare the differences between JSON and /local ?
Thanks

hmmm, does it give you any error? or just a white screen? where have you put your data and your json metadata?

Thanks for you response. I got it working. I don’t remember exactly what the problem was but I think it had to do with the json metadata.