Large number of SourceMap load failure warnings makes debugging difficult

Issue Summary

App developers see a large number of warnings in the browser which makes debugging difficult. The most prevalent of these is:

DevTools failed to load SourceMap: Could not load content for https://statlas.prod.atl-paas.net/jira-frontend-source-...

See https://community.developer.atlassian.com/t/jira-cloud-statlas-prod-atl-paas-net-and-source-map-files/43680 for further context.

Steps to Reproduce

1. Disconnect from Atlassian's network if connected.
2. Open DevTools.
3. Switch tot he Console tab.
4. Load a Jira issue page.
5. Observe the contents of the Console tab.

Expected Results

The Console tab is fairly clear.

Actual Results

The console tab has a vast number of messages such as DevTools failed to load SourceMap: Could not load content for https://statlas.prod.atl-paas.net/jira-frontend-source-...

Workaround

None