Issue Summary

When adding Confluence RSS feeds to MS Teams, the attempt will result in "Enter a valid RSS feed address" error. The same error is logged pre-configured, generated, anonymous or feeds with authentication parameters in them. Feed will continue to work on all other RSS Feed Readers

Steps to Reproduce

1. Create RSS Feed URL
2. Open MS Team RSS Feed Module
3. Attempt to add Feed URL into MS Feeds

Expected Results

Feed is added

Actual Results

MS Teams will fail to load the feed with "Enter a valid RSS feed address" error bellow

Workaround

Note:

MS Teams uses NodeJS RSS parser which does not support certain RSS URLs including those generated by Confluence.

Currently, there is no known workaround for this behavior. A workaround will be added here when available