将textAlign设置为textArea的居中，不使用尾随空格来确定居中

Maybe I'm doing something wrong but I have a textarea where I've specified textAlign = center and if I type in text with several trailing spaces, it doesn't count the spaces towards centering the text. If I add another character to the text (after all the spaces) it then all of a sudden centers the line, is this a bug, can anybody think of a good solution?Maybe I'm doing something wrong but I have a te