Comment 4 for bug 1268601

@Steven: Unfortunately, the markup can do *anything* to the text (like: inline markup, images, embedding other documents, ignore some commented out lines), so it is *impossible* to match the source and HTML lines. Also, the percent values of scroll positions should not be equal, because of the same thing (they can differ a lot in both directions).

@Cristoph: Do you really believe it gets reset *on saving*? In my test saving has no impact on live preview position.