Affects Version/s: Master
Component/s: Documents & Media
Steps to Reproduce:
1. Set dl.file.entry.thumbnail.enabled=false in portal-ext.properties
2. Start Liferay.
3. Upload an image under Documents and Media.
4. Create a Web Content Structure with a Documents and Media field.
5. Create a template for the structure.
6. Create a Web Content article using the structure and template.
7. Open the Documents and Media selection window.
8. Attempt to preview the image.
Image preview is generated.
Image preview is never generated and "Preview image is taking longer than expected." message appears on-screen.