[Webkit-unassigned] [Bug 160971] New: Align the innerText setter with the HTML spec and Gecko

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=160971

            Bug ID: 160971
           Summary: Align the innerText setter with the HTML spec and
                    Gecko
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zcorpan at gmail.com
                CC: cdumez at apple.com

See https://github.com/whatwg/html/issues/1679

WebKit throws for <br>.innerText = "x" etc, The spec and Gecko do not.

WebKit will update existing text node's data if element has just 1 text node.
The HTML spec and Gecko always replace with a new text node.

If the assigned value starts with a newline, WebKit/Chromium inserts an empty text node, the spec/Gecko/IE don't.

Spec at https://html.spec.whatwg.org/multipage/dom.html#the-innertext-idl-attribute

Tests at https://github.com/w3c/web-platform-tests/tree/master/innerText (these might get moved to html/ or something later)

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