1771938 - HTML Spec Archive still janks a lot

Status: VERIFIED FIXED

(Core :: DOM: Core & HTML, defect, P2)

Description

[Gregory Pappas [:gregp]]

Steps to reproduce:

1. Navigate to https://web.archive.org/web/20160616230918if_/https://html.spec.whatwg.org/

Actual results:
Page takes about a minute to load

Expected results:
Page takes about 30 seconds to load like Chromium

archive.org is using wombat.js to rewrite links on the client-side. This library seems to slow down Firefox a lot.

https://share.firefox.dev/3N2JdIN

Comment 1

[Emilio Cobos Álvarez [:emilio]]

Chromium has a specific cache for this: https://source.chromium.org/chromium/chromium/src/+/main:third_party/blink/renderer/core/html/html_collection.cc;l=436;drc=052831f0220b79fe0c3343b49f6d2863ea6de05d

Comment 2

[Emilio Cobos Álvarez [:emilio]]

Attachment: Bug 1771938 - Add a cache for nsContentList::NamedItem. r=smaug,edgar

Depends on D147788

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/a12003bc125a
Add a very simple cache for nsContentList::NamedItem. r=smaug

Comment 4

[Atila Butkovits]

Backed out for failures complaining about HTMLTableCellElement.

Backout link: https://hg.mozilla.org/integration/autoland/rev/6f3aa2b6ec4a7565b9d1c63d839b01778e244c02

Push with failures: https://treeherder.mozilla.org/jobs?repo=autoland&resultStatus=testfailed%2Cbusted%2Cexception%2Cretry%2Cusercancel&revision=a12003bc125a9c1790c8a9f4805ef76dc67e9c58&selectedTaskRun=aFqcrrgVSSevF3B-gOzynQ.0

Failure log:

• https://treeherder.mozilla.org/logviewer?job_id=379918362&repo=autoland&lineNumber=23417

• https://treeherder.mozilla.org/logviewer?job_id=379919849&repo=autoland&lineNumber=5966

Comment 5

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cf88d8b32287
Add a cache for nsContentList::NamedItem. r=smaug

Comment 6

[bszekely]

https://hg.mozilla.org/mozilla-central/rev/cf88d8b32287

Comment 7

[Gregory Pappas [:gregp]]

This page loads faster in Firefox than Chromium on my machine now :D

Comment 8

[Emilio Cobos Álvarez [:emilio]]

Sweet :)