Line break style in a textarea

I just found something very curious. A textarea in a form submitted in the traditional way gives me text lines separated by CR+LF. However, with liveview, I’ve got lines with only LF. It appears to me that browsers convert the line break style to CR+LF regardless client platform during form submission, however, Liveview bypasses this step and exposes the native line break style of the client side? I am uisng firefox on OSX, liveview 0.17.7