A primary key is sometimes case-sensitive, but in the UI the value is sometimes automatically capitalized using CSS text-transform, either just the first letters or the entire value. This happens in:
- Page title: e.g. HOST: DEV.EXAMPLE.COM
- Dialog title: e.g. Issue New Certificate For Host Dev.example.com

One solution is by wrapping the primary key with an HTML tag such as ... to prevent capitalization. This doesn't fix other capitalization problems (e.g. For vs. for).

Another solution is by not doing CSS text-transform at all. All messages will need to be translated with the correct capitalization. This might require duplicating some messages to accommodate different capitalization possibilities.