* Implement DOM format config structure
* Styles
* Input warnings
* Textarea special cases
* Select special cases
* Option special cases
We read the currently selected value from the FormatContext.
* Warning for non-lower case HTML
We don't change to lower case at runtime anymore but keep the warning.
* Pre tags innerHTML needs to be prefixed
This is because if you do the equivalent on the client using innerHTML,
this is the effect you'd get.
* Extract errors
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