[Webkit-unassigned] [Bug 179307] WebKit treats Big5-HKSCS as a distinct encoding from Big5, Encoding standard says it's the same

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=179307

--- Comment #1 from Maciej Stachowiak <mjs at apple.com> ---
Here's some past revisions that may explain why we have this behavior (pointed out by Darin):

https://trac.webkit.org/changeset/3611/webkit
    We changed to treat all Big5 as an alias for the Windows version (like the latest Encoding spec does)


https://trac.webkit.org/changeset/4054/webkit
    We changed to treat most Big5 character sets as Big5_HKSCS_1999, unless they were explicitly Microsoft-specific.

https://trac.webkit.org/changeset/4689/webkit
    We changed to treat most Big5 character sets as the DOS/Windows version, but left Big5-HKSCS alone.

It's not totally clear why Big5-HKSCS was left alone in that last change. I don't think this is compatible with other browsers do, so we should probably abandon this direction. But I need to make some tests.

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