Bug 277954 – contenteditable + getBoundingClientRect() does not return the correct result

• Status: NEW
• Component: DOM

[Simon Fraser (smfr)]

From https://developer.apple.com/forums/thread/761853:

If a sufficiently long text in an HTML tag leads to a text wrap, the calculated values (y and width) of getBoundingClientRect for characters or words directly after the wrap are not correct, if the element or one of a parent is contenteditable="true"
the y value has the value as if it were still before the break
the width value spans the entire width,
Here a code that reproduces this failure: https://stackblitz.com/edit/vitejs-vite-jwghts?file=src%2Fmain.ts,src%2FcalcLetterRects.ts,src%2Fstyle.css

[Radar WebKit Bug Importer]

<rdar://problem/133689169>