Bug 160998 – Attr.prefix / Element.prefix attribute should be readonly

• Status: RESOLVED
• Resolution: FIXED
• Component: DOM

[Chris Dumez]

Attr.prefix / Element.prefix attribute should be readonly:
- https://dom.spec.whatwg.org/#element
- https://dom.spec.whatwg.org/#attr

Firefox and Chrome agree with the specification.

[Chris Dumez]

Created attachment 286458 [details]
Patch

[Daniel Bates]

Comment on attachment 286458 [details]
Patch

I take it there is little compatibility risk with XHTML documents. Out of curiosity, do we know the motivation for this change of behavior?

[Chris Dumez]

(In reply to comment #2)
> Comment on attachment 286458 [details]
> Patch
> 
> I take it there is little compatibility risk with XHTML documents. Out of
> curiosity, do we know the motivation for this change of behavior?

Hopefully, not a big compatibility risk given that:
- Firefox made this change in Firefox 5 (~5 years ago)
- Chrome made this change in Mid-2014
- IE also does not have a setter
- We do not throw when trying to set an attribute that is readonly, it is merely ignored.

I could not find the motivation for this change via Googling.

[WebKit Commit Bot]

Comment on attachment 286458 [details]
Patch

Clearing flags on attachment: 286458

Committed r204648: <http://trac.webkit.org/changeset/204648>

[WebKit Commit Bot]

All reviewed patches have been landed.  Closing bug.