Aloha Editor is a JS-based HTML editor (aloha-editor.org). It works properly e.g. in WebKit-based browsers such as Google Chrome. With WebView (JavaFX 2.2.7, co-bundled with JDK 1.7.0_17) there are problems with caret positioning during editing, selection of text causes the selected test to appear "shifted" with respect to the original, and other quirks that make it unusable.

I don'k know whether this bug is possibly related with RT-18883.