LGTM2
I second Mike's suggestion to give a heads-up to the two sites we know
are affected.
/Daniel
On 2025-04-08 20:17, Mike Taylor wrote:
LGTM1 to just remove this outright.
I looked at the 8 sites listed on chromestatus, and of those only 2
seem to be affected in a meaningful way. Would you mind trying to do
outreach to those 2 sites and let them know how they can fix this
ahead of the change?
https://bbb.asahi-net.or.jp/ - mentions using Netscape Navigator. So
possibly a relic from the past. But maybe worth trying to send an
email to https://asahi-net.jp/, in case someone still uses this service?
https://shugo.net/ - a personal site that will be broken, but there
appear to be some email addresses on the homepage.
(the rest below aren't affected meaningfully)
http://www.chem.aoyama.ac.jp/ - the initial landing page is garbled
before the page is redirected (after 3 seconds) to
http://www.chem.aoyama.ac.jp/Chem/index.html. That page is fine.
https://dentalx.sakura.ne.jp/ is blank.
https://flex.phys.tohoku.ac.jp/ - this page works in Safari today.
https://kima3.net - effectively a blank site.
https://wi-lab.com/ - has a meta refresh to "/wi-lab/index.html", and
it looks fine in Safari (but a lot of text is in images...).
https://www.medipal-app.com/ - has a meta refersh to "/App/", and it
looks fine in Safari.
On 4/7/25 10:36 AM, Chromestatus wrote:
Contact emails
jkoka...@google.com
Explainer
None
Specification
None
Summary
There are known[1] security issues around charset auto-detection for
ISO-2022-JP. Given that the usage is very low, and Safari does not
support auto-detection of ISO-2022-JP, we will remove support for it
to eliminate the security issues. [1]:
https://www.sonarsource.com/blog/encoding-differentials-why-charset-matters/
Blink component
Blink>TextEncoding
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink>TextEncoding%22>
Motivation
There are known[1] security issues around charset auto-detection for
ISO-2022-JP. The use counter[2] shows that the auto-detection of
ISO-2022-JP charset only happens around 0.000002% of page load. Given
that usage is very low, and Safari does not support auto-detection of
ISO-2022-JP, we will remove support for it to eliminate the security
issues. [1]:
https://www.sonarsource.com/blog/encoding-differentials-why-charset-matters/
[2]: https://chromestatus.com/metrics/feature/timeline/popularity/5244
Initial public proposal
None
TAG review
None
TAG review status
Not applicable
Risks
Interoperability and Compatibility
None
/Gecko/: Positive
(https://github.com/mozilla/standards-positions/issues/1199)
/WebKit/: Shipped/Shipping
/Web developers/: No signals
/Other signals/:
WebView application risks
Does this intent deprecate or change behavior of existing APIs, such
that it has potentially high risk for Android WebView-based applications?
None
Debuggability
None
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
No
Flag name on about://flags
None
Finch feature name
None
Non-finch justification
None
Requires code in //chrome?
False
Tracking bug
https://issues.chromium.org/issues/40089450
Estimated milestones
No milestones specified
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6576566521561088?gate=6587467307941888
This intent message was generated by Chrome Platform Status
<https://chromestatus.com>.
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