There are two 'IDEOGRAPHIC SPACE’s (
U+3000) before and after the word “aaa”.
(Update: I found that there weren’t 'IDEOGRAPHIC SPACE’s, now corrected)
The paragraph’s raw content is formed by concatenating the lines and removing initial and final whitespace.
However, commonmark.js dingus returns:
(Update: modified the link, now it jumps to Babelmark)
U+3000s shouldn’t be removed because
U+3000 is defined as an Unicode whitespace character but not as a whitespace character.