Hi

I have two sites in umbraco. It shows preview in back office.That's worked fine.

Then I added uwebshop package and uwebshop MVC demo startup Kit. I published all sites. Site was working correctly.But, after that preview mode of the page not working in all sites. After click on preview, it opens a new tab for preview and shows loading image. I cleared IIS and cache,but shows the same.Is that any settings for preview that may change on package installation?

Any help appreciated :)