I keep seeing broken images when picking Slack channels from Salesforce, like a Nudge
Newer Salesforce orgs (perhaps created after Spring 2024), seem to have a new setting that restricts external image URLs. If you see broken images like:
This is a strong indicator of this setting being in place. To fix:
- Go to Salesforce Setup->Security->Session Settings
- Uncheck "Adopt updated CSP directives"