Missing break opportunity before punctuation

[rvalery]

Hello,

I tested the library on a simple example. I have the text "Is this a test ?" (notice the space before question mark).
When displayed in a browser, it can break between "test" and "?".
But css-line-break does not treat the space between "test" and "?" as a break opportunity.

breaker = window['css-line-break'].LineBreaker("Is this a test ?", {lineBreak: 'normal', wordBreak: 'normal'});
while (!(bk = breaker.next()).done) { console.log(bk.value.slice()); }

gives 4 chunk of text :

Is
this
a
test ?

I have set these CSS rules on the div displaying the text :

	line-break: normal;
	word-break: normal;
	word-wrap: normal;

I expected the library to give me 5 chunks of text, separating the word "test" and the question mark. Is this something that I'm not doing correctly, or a bug in the library ?