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Bug 1951772 - Disable Mutation Events in Nightly, r=emilio

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Differential Revision: https://phabricator.services.mozilla.com/D240375
This commit is contained in:
Olli Pettay
2025-03-04 22:54:05 +00:00
parent cc99338b50
commit d7a53d92bc
5 changed files with 7 additions and 21 deletions
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2
dom/tests/mochitest/general/test_interfaces.js
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@@ -905,7 +905,7 @@ let interfaceNamesInGlobalScope = [
// IMPORTANT: Do not change this list without review from a DOM peer! // IMPORTANT: Do not change this list without review from a DOM peer!
{ name: "MouseScrollEvent", insecureContext: true }, { name: "MouseScrollEvent", insecureContext: true },
// IMPORTANT: Do not change this list without review from a DOM peer! // IMPORTANT: Do not change this list without review from a DOM peer!
{ name: "MutationEvent", insecureContext: true }, { name: "MutationEvent", insecureContext: true, nightly: false },
// IMPORTANT: Do not change this list without review from a DOM peer! // IMPORTANT: Do not change this list without review from a DOM peer!
{ name: "MutationObserver", insecureContext: true }, { name: "MutationObserver", insecureContext: true },
// IMPORTANT: Do not change this list without review from a DOM peer! // IMPORTANT: Do not change this list without review from a DOM peer!

2
dom/webidl/MutationEvent.webidl
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@@ -9,7 +9,7 @@
* Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
* liability, trademark and document use rules apply. * liability, trademark and document use rules apply.
*/ */
[Exposed=Window] [Exposed=Window, Pref="dom.mutation_events.enabled"]
interface MutationEvent : Event interface MutationEvent : Event
{ {
const unsigned short MODIFICATION = 1; const unsigned short MODIFICATION = 1;

4
js/xpconnect/tests/mochitest/test_bug790732.html
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@@ -29,7 +29,9 @@ async function doTest() {
is(Ci.nsIDOMKeyEvent, KeyEvent); is(Ci.nsIDOMKeyEvent, KeyEvent);
is(Ci.nsIDOMMouseEvent, MouseEvent); is(Ci.nsIDOMMouseEvent, MouseEvent);
is(Ci.nsIDOMMouseScrollEvent, MouseScrollEvent); is(Ci.nsIDOMMouseScrollEvent, MouseScrollEvent);
is(Ci.nsIDOMMutationEvent, MutationEvent); if (SpecialPowers.getBoolPref("dom.mutation_events.enabled")) {
is(Ci.nsIDOMMutationEvent, MutationEvent);
}
is(Ci.nsIDOMUIEvent, UIEvent); is(Ci.nsIDOMUIEvent, UIEvent);
is(Ci.nsIDOMHTMLMediaElement, HTMLMediaElement); is(Ci.nsIDOMHTMLMediaElement, HTMLMediaElement);
is(Ci.nsIDOMRange, Range); is(Ci.nsIDOMRange, Range);

2
modules/libpref/init/StaticPrefList.yaml
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@@ -3518,7 +3518,7 @@
# Whether to dispatch mutation events. # Whether to dispatch mutation events.
- name: dom.mutation_events.enabled - name: dom.mutation_events.enabled
type: bool type: bool
value: true value: @IS_NOT_NIGHTLY_BUILD@
mirror: always mirror: always
# Limit of location change caused by content scripts in a time span per # Limit of location change caused by content scripts in a time span per

18
testing/web-platform/meta/dom/historical-mutation-events.html.ini
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@@ -1,18 +1,2 @@
[historical-mutation-events.html] [historical-mutation-events.html]
[Historical DOM features must be removed: MutationEvent] prefs: [dom.mutation_events.enabled:false]
expected: FAIL
[The DOMSubtreeModified mutation event must not be fired.]
expected: FAIL
[The DOMNodeInserted mutation event must not be fired.]
expected: FAIL
[The DOMNodeRemoved mutation event must not be fired.]
expected: FAIL
[The DOMCharacterDataModified mutation event must not be fired.]
expected: FAIL
[The DOMAttrModified mutation event must not be fired.]
expected: FAIL