Overview: Carets aren't drawn correctly in vertical writing modes such as `vertical-rl` and `sideways-rl`. The insertion point seems to be correct, though. Steps to Reproduce: 1. Create or open a testcase with editable vertical text (such as the URL in this bug report). 2. Try to place the caret near the beginning of the 2nd or 3rd line. 3. Try typing some text at that point. Actual Results: Although the insertion point is identified correctly, the caret is drawn further down from the actual insertion point. Expected Results: Caret position and insertion point match, and are as close as possible to the click point.