Steps to reproduce:
- Create a web content structure with a Documents and Media field. Create a template for this structure.
- Start creating a new web content of this structure: click Select under the Documents and Media field, and in the popup click Select File, in order to select and upload a file from your local file system.
- Select a PDF file from your local file system.
An Item Selector Preview window opens with a broken image preview icon
No Item Selector Preview window show be opened as it is not an image file
An Item Selector Preview window opens with a message that informs the user that the preview is not available.