LayoutTests/fast/inline/scrollable-overflow-pre-wrap-hanging-whitespace-expected.html

<style>
div {
  width: 2ch;
  font-size: 50px;
  font-family: Monospace;
  white-space: pre;
  border: 1px solid;
  overflow: auto;
}
</style>
<div contenteditable="true"> X
X</div>