Steps to Reproduce
- Log in as an admin.
- Navigate to System Properties > All Properties or /sys_properties_list.do.
- Find the property glide.attachment.extensions and set the value to pdf.
This property has normally a blank value to allow all file extensions.
- Navigate to System UI > Images.
- Create a new image in a format that is not allowed (for example, png or jpg) and upload the file.
Note that the operation fails and there are no errors shown in the UI to indicate why the upload failed. Also, the UI frame may load nested inside itself.
The problem is being investigated. You can subscribe to this known error article (click Subscribe button at the top of the article) to receive notifications when more information is available about this issue.
Related Problem: PRB659825