[Webkit-unassigned] [Bug 230594] New: Invalid browser selection after splitting a text node

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Sep 21 21:14:28 PDT 2021


            Bug ID: 230594
           Summary: Invalid browser selection after splitting a text node
           Product: WebKit
           Version: Safari 14
          Hardware: Mac (Intel)
                OS: macOS 10.15
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: james at toohey.io

Created attachment 438917

  --> https://bugs.webkit.org/attachment.cgi?id=438917&action=review

Replication HTML file

Hi team,

As per the spec, when splitting a text node, any live ranges that start or end in the node being split must have their respective nodes and offsets modified. 

https://dom.spec.whatwg.org/#concept-text-split (Important: Section 7)

In Safari 14 (and also in the newly released Safari 15 & Tech Preview), splitting a text node does not correctly adjust the selection to account for this:
- The offsets are not adjusted
- The nodes are not changed when appropriate

Please see the attached HTML file for a replication case. This works correctly in Firefox 92 and Chrome 93.

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