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Improve ERM subtests#2004

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ljharb merged 1 commit into
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JLHwung:improve-erm-subtests
Feb 10, 2026
Merged

Improve ERM subtests#2004
ljharb merged 1 commit into
compat-table:gh-pagesfrom
JLHwung:improve-erm-subtests

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@JLHwung

@JLHwung JLHwung commented Dec 26, 2025

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As a follow-up to #1999, this PR adds more support data to the test results.

@JLHwung

JLHwung commented Jan 26, 2026

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@ljharb Is this PR ready to merge? Thanks.

Comment thread data-esnext.js
chrome140: false,
chrome141: true,
chrome143: true,
firefox141: true,

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I tested with Firefox 115, it passed.

@JLHwung JLHwung Jan 27, 2026

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This is very strange. The ERM implementation was landed in FF 134 behind a flag, which was then unflagged in FF 141. The test should not have passed in FF 115. I will check if there is something wrong in the test itself.

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Update: I can not reproduce the result on FF 115 mac version, all subtests fail as expected:
image

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My bad. I installed FF115 to run the test but it updated itself. I reinstalled it and got the same results as you.

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Thank you. Yeah the auto-update is pretty annoying for test purpose. I wish FF can offer a "Firefox for testing" build that always disables the auto-update.

@ljharb ljharb force-pushed the improve-erm-subtests branch from 8988d56 to b3064fd Compare February 10, 2026 05:31
@ljharb ljharb merged commit b3064fd into compat-table:gh-pages Feb 10, 2026
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3 participants