1457304 - Empty text node generates text run in empty element with white-space:pre

Status: RESOLVED DUPLICATE of bug 1731120

(Core :: Layout: Block and Inline, defect, P3)

Description

[Oriol Brufau [:Oriol]]

Attachment: testcase.htm

Run this code:

    <style>
    div {
      white-space: pre;
      background: red;
    }
    </style>
    There should be no red: <div></div>
    <script>
    document.querySelector("div").appendChild(document.createTextNode(""));
    </script>

Result: the element contains a red text line

Expected: no text line because empty text nodes do not generate text runs. Chrome and Edge behave properly.

https://drafts.csswg.org/css-display-3/#intro
> If the sequence contains no text, however, it does not generate a text run.

Comment 1

[Oriol Brufau [:Oriol]]

Fixed in bug 1731120