Blake Erickson 6ee6b1f1d1
DEV: Add validation for allowed iframes setting (#28178)
- Adds a validator for the allowed iframes site setting
- Adds a migration to update any values that don't pass the validator

Follow up to: 188cb58daa833839c54c266ce22db150a3f3a210
2024-08-01 06:51:02 -06:00
..