1209342 - [markup-view] attributeName="null" is added to markup view when an attribute is added and removed in the same function

Status: RESOLVED FIXED

(DevTools :: Inspector, defect)

Description

[Brian Grinstead [:bgrins]]

+++ This bug was initially created as a clone of Bug #1192270 +++

When executing:

> document.body.setAttribute("a", "b");
> document.body.removeAttribute("a");

The body ends up with "a=null" visible in the markup view.  It appears that this could use a fix in the DOM code for MutationObserver, but there should be a workaround we can use in the Walker Actor

Comment 1

[Brian Grinstead [:bgrins]]

Attachment: MozReview Request: Bug 1209342 - Ignore attribute changes from Mutation Observer with null newValue;r=pbrosset

Bug 1209342 - Ignore attribute changes from Mutation Observer with null newValue;r=pbrosset

Comment 2

[Brian Grinstead [:bgrins]]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=479cca9c22d5

Comment 3

[Patrick Brosset <:pbro>]

Comment on attachment 8667010 [details]
MozReview Request: Bug 1209342 - Ignore attribute changes from Mutation Observer with null newValue;r=pbrosset

https://reviewboard.mozilla.org/r/20655/#review18549

Comment 4

[Pulsebot]

https://hg.mozilla.org/integration/fx-team/rev/08f262008391

Comment 5

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

https://hg.mozilla.org/mozilla-central/rev/08f262008391