Thread:Talk:Universal Language Selector/JavaScript bug in IE8

When editing multi-line paragraphs (or lists, or table cells that are split as one per line), trying to move from one line to its neighboring lines via the arrow keys (up / down) will force the cursor to the first character of the line to which i am moving. The strange thing is that no warning is being raised (as it usually happens for JS bugs), even if i enable script debugging and notifications about every script error. Fwiw, i tested this in IE9 and Safari and it doesn't happen. Is the IE8 userbase small enough to justify ignoring this disfunctionality, or should it be fixed?