Manifest progress bar hangs during deleting, uploading, and refreshing manifest
Description of problem:
The progress bar after uploading, deleting, or refreshing a manifest does not show any progress. It just stays gray throughout with no progress filled in.
Version-Release number of selected component (if applicable):
6.7.0 snap 1
Steps to Reproduce:
1. Content -> subscription -> Manage Manifest
2. Delete manifest
3. Click ok.
4. Repeat 2-3 with uploading a new manifest and refreshing
Progress bar is not filled in.
Progress bar is filled in and disappears once 100% is reached.