[css-text-4] Line limitations for text-wrapping

[Que-tin]

Chrome currently implemented text-wrap: balance in a way where it only works on texts up to four rows because of performance reasons. According to the specs there is no limitation to the number of rows being affected or valid.

Would it make sense to specify how text-wrap: balance should behave across browsers before it lands in terms of if there should be limitations?

[Loirooriol]

Relevant text from https://drafts.csswg.org/css-text-4/#valdef-text-wrap-balance

The exact algorithm is UA-defined.
UAs may treat this value as wrap if there are more than ten lines to balance.

[Que-tin]

Okay seems like I over read that. But is may the correct word then?
I would expect smth. like:

UAs shall treat this value as wrap if there are more than ten lines to balance.

To achieve a consistent behaviour across browsers.

[fantasai]

No, this is an area where we want UAs to improve over time.