Attachments are not loading when there's a mismatch between the system clock and the actual timezone on the user's computer

Issue Summary

Attachments are not loading for users who have their system time different from the time zone.

Steps to Reproduce

1. Create a page and upload an attachment.
2. Access the Date&Time configurations on your computer.
3. Change the time on your machine so that it's different from the time zone you are in.
4. Go to the page where you added an attachment.

Expected Results

The user should be able to see the attachments.

Actual Results

The attachment fails to load.

Workaround

Go to your system settings and make sure that the time matches the time zone.