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/
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